CN207058760U - A kind of power take-off mechanism of electric punch machine - Google Patents

Abstract

A kind of power take-off mechanism of electric punch machine is the utility model is related to, includes motor, the rotating shaft rotated by motor and the cam being installed in rotating shaft, it is characterised in that：Also include the contiguous block with cam linkage, described contiguous block one end is clutch end, the other end is provided with the cam chamber for cam installation, described peripheral cam surface is mutually butted on the inner peripheral surface of the cam chamber of contiguous block, described cam chamber is provided with the first facet towards power output side and power output side is provided with the second facet, when described cam and the first facet offsets and has the trend to its rotation, clutch end moves along away from rotor shaft direction, when described cam and the second facet offsets and has the trend to its rotation, moved towards rotor shaft direction on clutch end edge.Using such scheme, there is provided a kind of reasonable in design, power take-off mechanism of transmission efficiency and a kind of electric punch machine without spring automatic reset.

Description

A kind of power take-off mechanism of electric punch machine

Technical field

It the utility model is related to a kind of electric punch machine, in particular to a kind of power take-off mechanism of electric punch machine.

Background technology

Card is applied to various occasions, such as identity card, vip cards, phonecard, therefore card machine-building is studied To developing rapidly.

Electric punch machine generally includes shell, fabrication window, punching cutter head and power take-off mechanism, described punching cutter head and Power take-off mechanism is arranged at enclosure, and described punching tip shapes size is adapted with the card of the processing, described Punching cutter head driven by power take-off mechanism, move inside the housing and be through to housing exterior, described fabrication window Shell is arranged at, and window is provided with shell positioned at punching cutter head, described window shape size is passed through with punching cutter head Wear and be adapted at shell.Cardstock is put into by fabrication window, and make needs cut be partially disposed in window；It is defeated to start power Go out mechanism, make punching cutter head mobile and run through window, by the card for needing to cut in window by be punched cutter head cut out come.

Traditional power take-off mechanism includes motor, cam, connecting rod and spring, and described motor is provided with output shaft, The cam is arranged at output shaft, and described connecting rod one end is fixedly installed on punching cutter head, and the other end is mutually butted on cam periphery, Described spring extruding is arranged between connection rod end and shell at cam, connecting rod is resetted towards cam side.It is defeated Shaft is rotated by motor, and band moving cam rotates, during output shaft rotation one encloses, due to cam periphery and output between centers Away from difference, and it is arranged to diminish after first becoming big, connecting rod is diminished after first becoming big with respect to output shaft center, therefore cam band Dynamic punching cutter head completes the motion first resetted afterwards outwardly.

Following some problems be present in traditional power take-off mechanism：Spring reset is set, because spring is elastomeric material, its Operation principle is completed by the deformation of itself, therefore deformation will cause to be permanently deformed, be broken, fatigue mill spring works back and forth The a series of problems such as damage, spring failure is ultimately resulted in, and spring once fails, it will make connecting rod remote in the presence of cam From moving block, and it can not reset, more severe patient, cam delivers energy to connecting rod because rotating speed is too fast, makes connecting rod with punching Cutting knife is first with flying out, and causes security incident.

Utility model content

The purpose of this utility model is to overcome shortcoming and defect existing for prior art, and provides a kind of structure design Rationally, the power take-off mechanism of transmission efficiency and a kind of electric punch machine without spring automatic reset.

To achieve the above object, the utility model provides following technical scheme：Include motor, by motor rotation Rotating shaft and the cam being installed in rotating shaft, it is characterised in that：Also include the contiguous block with cam linkage, described contiguous block one Hold and clutch end, the other end are provided with the cam chamber for cam installation, described peripheral cam surface is mutually butted on contiguous block The inner peripheral surface of cam chamber, described cam chamber are provided with the first facet towards power output side and set away from power output side Be equipped with the second facet, described cam and the first facet offset and have the trend rotated to it when, clutch end is along remote Rotor shaft direction moves, and when described cam and the second facet offset and have the trend to its rotation, clutch end is along direction Rotor shaft direction moves.

By using above-mentioned technical proposal, cam that the workspace of power take-off mechanism is arranged in rotating shaft using rotating with Rotating shaft rotates together, and cam offsets the first facet or the second facet, when cam rotation offsets the first facet, the first facet with Spacing between rotating shaft has the trend become larger, clutch end is moved along away from rotor shaft direction, wherein clutch end Away from rotor shaft direction be power output direction, when cam rotation depart from the first facet, and offset the second facet when, the second facet and Spacing between rotating shaft has the trend become larger, clutch end is moved towards rotor shaft direction, i.e., clutch end resets Into exporting SBR next time.It the advantage is that, first：Analyzed from energy point of view, power is driven during cam rotation During output end is moved away from rotor shaft direction, according to spring reset structure, spring is in squeezed state, and extruding force deviates from The direction of motion, therefore not only need energy driving power output end to be moved along the direction of motion in clutch end moving process, But also to overcome spring extruding force to do work, and mechanism offsets directly by cam with the first facet, the first facet is by cam Extruding force and moved along the direction of motion, unnecessary resistance will not be produced, therefore unnecessary energy will not be consumed；Cam rotation process During middle drive clutch end moves towards rotor shaft direction, according to spring reset structure, spring release extruding force band Dynamic connecting rod makes it mutually be butted on cam, has given the energy transmission that spring discharges to cam indirectly, completes the samsara that works Moment, motor need acting rotating shaft, cam and contiguous block is stopped, therefore also need extra energy offset spring to pass to The energy of cam, and mechanism offsets directly by cam with the second facet, by the movement of the second facet, makes clutch end court Resetted to pivot, motor be stopped needed for the work(that does be rotating shaft, cam, contiguous block by move to it is static needed for energy, And this three also accordingly exists in spring reset structure, therefore it is concluded that, the work of a work samsara inner spring is both needed to Extra ability provides its motion, and mechanism does not produce more residual resistance can play a part of energy-conservation.Second：From security performance Angle analysis, mechanism compares spring return mechanism, in the absence of initial tension of spring, therefore in the absence of spring permanent distortion, disconnected The spring failure situation such as split, wear, and spring failure will result directly in electric punch machine work not exclusively and lack spring and answer Potential safety hazard caused by the work of position.

The utility model is further arranged to：Described cam is eccentric wheel, and the first described facet is parallel to second point Face, and spacing is equal to eccentric wheel outer circumference diameter.

By using above-mentioned technical proposal, cam uses the design of eccentric wheel, eccentric wheel is placed in into the first facet and second Between facet, because the first facet is parallel to the second facet, and spacing is identical with eccentric wheel outer circumference diameter, thus eccentric wheel no matter Under any state, the contact point of its first facet that offsets is connected with the contact point for second facet that offsets must cross the circle of outer circumference diameter The heart, eccentric wheel can not be the advantage is that, in power output end motion with respect to the first facet and the second facet vertical direction displacement When state changes, prevent contiguous block from departing from eccentric wheel because inertia continues to move, make conversion of motion more steady, if Spacing between first facet and the second facet is not equal to eccentric wheel outer circumference diameter, then eccentric wheel turns to second from the first facet It will hit because inertia departs from during facet, if cam is general cam, can equally be collided because inertia deviates.Institute The clutch end motion state stated change including it is following twice, motion for the first time change：Clutch end is towards remote Change from rotor shaft direction movement to towards rotor shaft direction and move, change for the second time：Clutch end moves towards rotor shaft direction It is dynamic to change to stopping movement.

The utility model is further arranged to：Opening is provided between described the first facet and the second facet towards cam Arc transiting surface.

By using above-mentioned technical proposal, the eccentric wheel that is arranged to of arc transiting surface turns to the second facet from the first facet And turned to from the second facet in the conversion process of the first facet and play guiding and supporting role, make conversion more steady.

The utility model is further arranged to：Flat key and clip are provided between described cam and rotating shaft, described is convex Wheel inner circumferential and rotating shaft periphery are correspondingly arranged on the keyway for flat key installation, and described clip is arranged at cam two respectively in axial direction Side, and it is held on rotating shaft.

By using above-mentioned technical proposal, cam is arranged at rotating shaft, and the positioning to cam fractional radial position is played in rotating shaft, The setting of flat key, makes cam be fixed on rotating shaft, reaches positioning of the cam with respect to rotating shaft circumferential position, and clip is arranged respectively and cam With respect to the position both ends of rotating shaft axial direction, cam can not be moved axially along rotating shaft, reach axially position, triple combination's effect, make Cam is fixed on rotating shaft, and with rotating shaft synchronous axial system.

The utility model is further described with reference to the accompanying drawings and detailed description.

Brief description of the drawings

Fig. 1 is the installation diagram of the utility model embodiment；

Fig. 2 is the front view of the utility model embodiment；

Fig. 3 is the sectional view of A-A in Fig. 2；

Fig. 4 is the part drawing of eccentric wheel in the utility model embodiment；

Fig. 5 is the part drawing of rotating shaft in the utility model embodiment；

Fig. 6 is the part drawing of contiguous block in the utility model embodiment；

Fig. 7 is the installation diagram of rotating shaft, eccentric wheel and contiguous block in the utility model embodiment；

Fig. 8 is the installation diagram that the utility model is applied to electric punch machine；

Fig. 9 is the sectional view that the utility model is applied to electric punch machine；

Figure 10 the utility model is applied to the installation diagram after the hiding shell of electric punch machine.

Embodiment

It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer Type is described in further detail.

As shown in Fig. 1-Fig. 7, the utility model discloses a kind of power take-off mechanism of electric punch machine, include motor 41st, the rotating shaft 42 rotated by motor 41 and the cam 43 being installed in rotating shaft 42, it is characterised in that：Also include and cam 43 The contiguous block 44 of linkage, the one end of contiguous block 44 are clutch end 442, and the other end is provided with the cam chamber installed for cam 43 441, the outer peripheral face of cam 43 is mutually butted on the inner peripheral surface of the cam chamber 441 of contiguous block 44, and cam chamber 441 is towards clutch end 442 Side is provided with the first facet 4411 and the side of clutch end 442 is provided with the second facet 4412, the facet of cam 43 and first 4411 offset and during with the trend rotated to it, and clutch end 442 is along moving away from the direction of rotating shaft 42, cam 43 and second When facet 4412 offsets and has the trend to its rotation, clutch end 442 moves along towards the direction of rotating shaft 42.Power output The cam 43 that the workspace of mechanism is arranged in rotating shaft 42 using rotating rotates with rotating shaft 42, and cam 43 offsets first point The facet 4412 of face 4411 or second, when cam 43, which rotates, offsets the first facet 4411, between the first facet 4411 and rotating shaft 42 Spacing have the trend become larger, make clutch end 442 along moving away from the direction of rotating shaft 42, wherein clutch end 442 It is power output direction away from the direction of rotating shaft 42, departs from the first facet 4411 when cam 43 rotates, and second facet 4412 that offsets When, the spacing between the second facet 4412 and rotating shaft 42 has the trend become larger, makes clutch end 442 towards the side of rotating shaft 42 To motion, i.e., clutch end 442 resets to enter exports SBR next time.

Preferably, the present embodiment cam 43 is eccentric wheel 431, the first facet 4411 parallel to the second facet 4412, And spacing is equal to the outer circumference diameter of eccentric wheel 431.Eccentric wheel 431 is placed in the first facet by cam 43 using the design of eccentric wheel 431 4411 and second between facet 4412, because the first facet 4411 is parallel to the second facet 4412, and spacing with outside eccentric wheel 431 All diameters are identical, therefore eccentric wheel 431 is no matter under any state, the contact point of its first facet 4411 that offsets and offset second The contact point of facet 4412, which is connected, must cross the center of circle of outer circumference diameter, make eccentric wheel 431 can not be with respect to the first facet 4411 and second The vertical direction displacement of facet 4412, the advantage is that, when the motion state of clutch end 442 changes, prevent contiguous block 44 depart from eccentric wheel 431 because inertia continues to move, and make conversion of motion more steady, if the first facet 4411 and second point Spacing between face 4412 is not equal to the outer circumference diameter of eccentric wheel 431, then eccentric wheel 431 turns to second point from the first facet 4411 It will hit because inertia departs from during face 4412, if cam 43 is general cam 43, can equally occur because inertia deviates Collision.The motion state of clutch end 442 change including it is following twice, motion for the first time change：Clutch end 442 change to towards the movement of the direction of rotating shaft 42 towards away from the movement of the direction of rotating shaft 42, change for the second time：Clutch end 442 Change towards the movement of the direction of rotating shaft 42 to stopping movement.

Preferably, opening is provided between the present embodiment the first facet 4411 and the second facet 4412 towards cam 43 Arc transiting surface 4413.The eccentric wheel 431 that is arranged to of arc transiting surface 4413 turns to the second facet from the first facet 4411 4412 and turned to from the second facet 4412 in the conversion process of the first facet 4411 play guiding and supporting role, make conversion more Add steady.

In addition, flat key 5 and clip 6, the inner circumferential of cam 43 and rotating shaft 42 are provided between the present embodiment cam 43 and rotating shaft 42 Periphery is correspondingly arranged on the keyway 51 installed for flat key 5, and clip 6 is arranged at the both sides of cam 43 respectively in axial direction, and is held on and turns Axle 42.Cam 43 is arranged at rotating shaft 42, and rotating shaft 42 is played the positioning to the fractional radial position of cam 43, the setting of flat key 5, made convex Wheel 43 is fixed on rotating shaft 42, reaches positioning of the cam 43 with respect to the circumferential position of rotating shaft 42, clip 6 is arranged relative with cam 43 respectively The position both ends of the axial direction of rotating shaft 42, make cam 43 can not be moved axially along rotating shaft 42, reach axially position, and triple combination acts on, Cam 43 is fixed on rotating shaft 42, and with the synchronous axial system of rotating shaft 42.

It is applied to the embodiment of electric punch machine for the utility model below.

As shown in Fig. 4-Figure 10, a kind of electric punch machine, wherein clutch end 442 are set with the punching linkage of cutter head 3, bag The fabrication window 2 for include shell 1, being arranged on shell 1, the power for being punched cutter head 3 and mobile punching cutter head 3 being arranged in shell 1 Output mechanism 4, power take-off mechanism 4 include motor 41, the rotating shaft 42 rotated by motor 41 and are installed on convex in rotating shaft 42 Wheel 43, power take-off mechanism 4 also include contiguous block 44, and the one end of contiguous block 44 is set with the punching linkage of cutter head 3, and the other end is provided with The cam chamber 441 installed for cam 43, the outer peripheral face of cam 43 are mutually butted on the inner peripheral surface of the cam chamber 441 of contiguous block 44, cam chamber 441 are provided with the first facet 4411 towards punching cutter head 3 side positioned at cam 43 and are set positioned at cam 43 away from punching cutter head 3 side There is the second facet 4412, when the facet 4411 of cam 43 and first offsets and has the trend to its rotation, contiguous block 44 drives punching Cutting knife first 3 moves towards fabrication window 2, when the facet 4412 of cam 43 and second offsets and has the trend to its rotation, contiguous block 44 Punching cutter head 3 is driven to be moved away from fabrication window 2.The setting of power take-off mechanism 4, the movement of punching cutter head 3 is driven, makes punching cutter First 3 run through fabrication window 2, and required card is processed, plays the groundwork of the purpose of fabrication, wherein power take-off mechanism 4 Area is rotated using the cam 43 that is arranged in rotating shaft 42 is rotated with rotating shaft 42, and cam 43 offsets the first facet 4411 or the Two facets 4412, when cam 43 rotate offset the first facet 4411 when, the spacing between the first facet 4411 and rotating shaft 42 have by The big trend of gradual change, makes punching cutter head 3 be moved towards fabrication window 2, card is cut out, and departs from the first facet when cam 43 rotates 4411, and offset the second facet 4412 when, the spacing between the second facet 4412 and rotating shaft 42 has the trend become larger, makes punching Cutting knife first 3 moves away from fabrication window 2.

Preferably, the present embodiment cam 43 is eccentric wheel 431, the first facet 4411 parallel to the second facet 4412, And spacing is equal to the outer circumference diameter of eccentric wheel 431.Eccentric wheel 431 is placed in the first facet by cam 43 using the design of eccentric wheel 431 4411 and second between facet 4412, because the first facet 4411 is parallel to the second facet 4412, and spacing with outside eccentric wheel 431 All diameters are identical, therefore eccentric wheel 431 is no matter under any state, the contact point of its first facet 4411 that offsets and offset second The contact point of facet 4412, which is connected, must cross the center of circle of outer circumference diameter, make eccentric wheel 431 can not be with respect to the first facet 4411 and second The vertical direction displacement of facet 4412, the advantage is that, be punched the motion state of cutter head 3 change when, prevent contiguous block 44 by Continue to move in inertia and depart from eccentric wheel 431, make conversion of motion more steady.Preferable first facet 4411 of this programme is hung down First 3 direction of motion of cutting knife is flung, when the first facet 4411 is vertically punched 3 direction of motion of cutter head, eccentric wheel 431 is to the first facet Thrust caused by 4411 will not produce the component in bias motion direction along the punching direction of motion of cutter head 3, motion is more flowed Freely, and due to the second facet 4412 and 4411 parallel principle of the first facet, there is phase when eccentric wheel 431 acts on the second facet 4412 The characteristics of same.

Arc-shaped transition of the opening towards cam 43 is provided between the present embodiment the first facet 4411 and the second facet 4412 Face 4413.The eccentric wheel 431 that is arranged to of arc transiting surface 4413 turns to the second facet 4412 and from from the first facet 4411 Two facets 4412, which are turned in the conversion process of the first facet 4411, plays guiding and supporting role, makes conversion more steady.

In addition, flat key 5 and clip 6, the inner circumferential of cam 43 and rotating shaft 42 are provided between the present embodiment cam 43 and rotating shaft 42 Periphery is correspondingly arranged on the keyway 51 installed for flat key 5, and clip 6 is arranged at the both sides of cam 43 respectively in axial direction, and is held on and turns Axle 42.Cam 43 is arranged at rotating shaft 42, and rotating shaft 42 is played the positioning to the fractional radial position of cam 43, the setting of flat key 5, made convex Wheel 43 is fixed on rotating shaft 42, reaches positioning of the cam 43 with respect to the axial location of rotating shaft 42, clip 6 is arranged relative with cam 43 respectively The position both ends of the axial direction of rotating shaft 42, make cam 43 can not be moved axially along rotating shaft 42, reach axially position, and triple combination acts on, Cam 43 is fixed on rotating shaft 42, and with the synchronous axial system of rotating shaft 42.

In addition, the adjusting means 45 of the regulation rotating speed of rotating shaft 42 is provided between the present embodiment rotating shaft 42 and motor 41, regulation Device 45 includes the wheel of the first round 451, second 452 and transmission belt 453, and the first round 451 is coaxially disposed in motor 41, the second wheel 452 It is coaxially disposed and is connected between rotating shaft 42, the wheel of the first round 451 and second 452 by transmission belt 453.Because rotating shaft 42 needs motor 41 transmit energy, but motor 41 export rotating speed it is too fast, so by between rotating shaft 42 and motor 41 by adjusting rotating shaft 42 The adjusting means 45 of rotating speed is attached, and reduces the output speed of motor 41, wherein changing the first round in adjusting means 45 451st, the different effective radius ratios of the second wheel 452, can adjust the rotating speed of rotating shaft 42, make the work under speed needed for itself of rotating shaft 42 Make, connected between the wheel of the first round 451 and second 452 by transmission belt 453, the first round 451 is driven the transmission of the second wheel 452, remove Outside this, compared with traditional wheel of the first round 451 and second 452 is engaged by gear, the design of transmission belt 453 the advantage is that The effect for reducing noise is served, transmission belt 453 typically uses elastomeric material, and it is rotated compared to gold in the cooperation of metal rotating wheel Category gear coordinates sound caused by rotation significantly to reduce.The preferable transmission belt 453 of this programme selects timing belt 453, with Matching selection the first synchronizing wheels 451 and the second synchronizing wheel 452 of the wheel of the first round 451 and second 452, wherein timing belt 453 and The selection of corresponding synchronizing wheel, the advantage is that the cooperation rotational stability of timing belt 453 and synchronizing wheel is extremely strong, its rotating ratio is strict In accordance with effective radius ratio, belt slippage will not be produced and influence rotating ratio.

Cartridge 24 is received in addition, being provided with the present embodiment fabrication window 2.Receive cartridge 24 and be easy to the temporary of card after machining When store, wherein receive cartridge 24 be arranged on fabrication window 2, staff directly puts the card produced out of fabrication window 2 Enter the receipts cartridge 24 on fabrication window 2, reach working effect in most short shift length.

Claims (4)

1. a kind of power take-off mechanism of electric punch machine, include motor, the rotating shaft rotated by motor and be installed on rotating shaft On cam, it is characterised in that：Also including the contiguous block with cam linkage, described contiguous block one end is clutch end, The other end is provided with the cam chamber for cam installation, and described peripheral cam surface is mutually butted on the inner peripheral surface of the cam chamber of contiguous block, Described cam chamber is provided with the first facet towards power output side and power output side is provided with the second facet, institute When the cam and the first facet stated offset and have the trend to its rotation, clutch end moves along away from rotor shaft direction, institute When the cam and the second facet stated offset and have the trend to its rotation, clutch end edge is moved towards rotor shaft direction.

A kind of 2. power take-off mechanism of electric punch machine according to claim 1, it is characterised in that：Described cam is Eccentric wheel, the first described facet is parallel to the second facet, and spacing is equal to eccentric wheel outer circumference diameter.

A kind of 3. power take-off mechanism of electric punch machine according to claim 2, it is characterised in that：Described first point Arc transiting surface of the opening towards cam is provided between face and the second facet.

A kind of 4. power take-off mechanism of electric punch machine according to claim 1, it is characterised in that：Described cam with Flat key and clip are provided between rotating shaft, described cam inner circumferential and rotating shaft periphery are correspondingly arranged on the keyway for flat key installation, Described clip is arranged at cam both sides respectively in axial direction, and is held on rotating shaft.