CN207058756U - A kind of double card electric punch machine - Google Patents

Abstract

A kind of double card electric punch machine is the utility model is related to, including shell, fabrication window, punching cutter head and power take-off mechanism, power take-off mechanism include motor, rotating shaft and cam, it is characterised in that：The quantity for being punched cutter head is two groups, power take-off mechanism also includes the contiguous block being correspondingly arranged with each punching cutter head, each contiguous block one end is set with punching cutter head linkage, the other end is provided with the cam chamber for cam installation, peripheral cam surface is mutually butted on the inner peripheral surface of the cam chamber of each contiguous block, each cam chamber is provided with the first facet close to punching cutter rostral and punching cutter rostral is provided with the second facet, when cam and the first facet offset and have the trend to its rotation, each contiguous block drives corresponding punching cutter head to be moved towards fabrication window, when cam and the second facet offset and have the trend to its rotation, each contiguous block drives corresponding punching cutter head to be moved away from fabrication window.Using such scheme, there is provided a kind of security performance is high, and saves so as to improve a kind of double card electric punch machine of operating efficiency.

Description

A kind of double card electric punch machine

Technical field

It the utility model is related to a kind of electric punch machine, and in particular to a kind of double card 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：

First, cam is directly arranged at motor, because motor speed is too fast, it is necessary to which the output shaft on motor is in a circle Complete one back and forth, operating accuracy requires too high.

Second, spring reset is set, and because spring is elastomeric material, its operation principle is completed by the deformation of itself, Therefore spring works back and forth deformation will cause to be permanently deformed, be broken, a series of problem such as fatigue wear, ultimately result in spring Failure, and spring once fails, it will make connecting rod in the presence of cam away from moving block, and can not reset, more severe patient, Cam delivers energy to connecting rod because rotating speed is too fast, makes connecting rod first with flying out with punching cutter, causes security incident.

3rd, spring reset, which is arranged in functional relationship, plays power consumption effect, and cutter head is punched because spring drives in motor When being moved along energy outbound course, that is, it is punched cutter head and is moved towards fabrication window, spring produces reverse elastic force and expends energy, except this Outside, motor rated power is certain, and its driving force is also influenceed by rated power, and the elastic force of spring drives punching cutter in motor A certain proportion of driving force is occupied in head motion process, makes punching cutter head enough driving force cutting cards useless, therefore pass The electric punch machine of system is single deck tape-recorder electric punch machine, i.e. a work period, can only realize the cutting of a card.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of security performance height, and save So as to improve a kind of double card electric punch machine of operating efficiency.

To achieve the above object, the utility model provides following technical scheme：Including shell, the system being arranged on shell The power take-off mechanism of card window, the punching cutter head being arranged in shell and mobile punching cutter head, described power take-off mechanism bag Include motor, the rotating shaft rotated by motor and the cam being installed in rotating shaft, it is characterised in that：The quantity of described punching cutter head For two groups, described power take-off mechanism also includes the contiguous block being correspondingly arranged with each punching cutter head, each described contiguous block one End is set with punching cutter head linkage, and the other end is provided with the cam chamber for cam installation, and described peripheral cam surface is mutually butted on respectively The inner peripheral surface of the cam chamber of contiguous block, each described cam chamber are provided with the first facet and away from punching cutter close to punching cutter rostral Rostral is provided with the second facet, when described cam and the first facet offset and have the trend to its rotation, each contiguous block band Dynamic corresponding punching cutter head moves towards fabrication window, and described cam offsets with the second facet and has the trend to its rotation When, each contiguous block drives corresponding punching cutter head to be moved away from fabrication window.

By using above-mentioned technical proposal, the setting of power take-off mechanism, each punching cutter head movement is driven, makes each punching cutter Head runs through fabrication window, required card is processed, plays while carries out the purpose of double card making, wherein power take-off mechanism Groundwork area is rotated using the cam that is arranged in rotating shaft is rotated with rotating shaft, and cam offsets the first facet or second point Face, when cam rotation offsets the first facet, the spacing between the first facet and rotating shaft has the trend become larger, makes each punching Cutter head towards fabrication window move, card is cut out, when cam rotation depart from the first facet, and offset the second facet when, second point Spacing between face and rotating shaft has the trend become larger, each punching cutter head is moved away from fabrication window.It the advantage is that, the One：From the angle analysis of security performance, the electric punch machine of spring reset structure is compared in this setting, in the absence of initial tension of spring, Therefore in the absence of spring failure situations such as spring permanent distortion, fracture, abrasions, and spring failure will result directly in electric punch machine Work is incomplete and lacks potential safety hazard caused by spring reset work.Second：Analyzed from energy point of view, cam rotation process During middle drive punching cutter head moves towards fabrication window, according to spring reset structure, spring is in squeezed state, extruding force Away from the direction of motion, therefore energy driving punching cutter head is not only needed to be moved along the direction of motion in cutter head moving process is punched, But also to overcome spring extruding force to do work, and this setting 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 punching cutter head moves away from fabrication window, according to spring reset structure, spring release extruding force drives company Extension bar makes it mutually be butted on cam, has given the energy transmission that spring discharges to cam indirectly, completes the moment of a work samsara, Motor needs acting rotating shaft, cam and punching cutter head is stopped, therefore it is convex also to need extra energy offset spring to pass to The energy of wheel, and this setting offsets directly by cam with the second facet, by the movement of the second facet, makes punching cutter head away from system Card window, 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 exists Also accordingly exist in spring reset structure, therefore it is concluded that, the work of a work samsara inner spring is both needed to extra ability Its motion is provided, and this setting can play a part of energy-conservation without more residual resistance are produced.3rd：From operating efficiency angle analysis, This setting is using two settings for being punched cutter head, therefore within the identical time, this setting can complete twice of workload, significantly Operating efficiency is improved, its premise provides enough driving forces for motor, because this setting is without spring reset effect, motor production Raw driving force, which need not provide, to be supported needed for spring-compressed, therefore driving force caused by motor is entirely used for driving punching cutter Head carries out cutting card, possesses two punching cutter heads of sufficiently large drive force and completes cutting work.

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 with respect to the first facet and the second facet vertical direction displacement, in punching cutter head motion shape When state changes, prevent contiguous block from departing from eccentric wheel because inertia continues to move, make conversion of motion more steady, if the Spacing between one facet and the second facet is not equal to eccentric wheel outer circumference diameter, then eccentric wheel turns to second point from the first facet It will hit because inertia departs from during face, if cam is general cam, can equally be collided because inertia deviates.It is described Punching cutter head motion state change including it is following twice, motion for the first time change：Cutter head is punched towards fabrication window It is mobile to change to away from the movement of fabrication window, change for the second time：Punching cutter head is moved to stopping movement away from fabrication window.We Preferable first facet of case is vertically punched the cutter head direction of motion, when the first facet is vertically punched the cutter head direction of motion, eccentric wheel To thrust caused by the first facet along the punching cutter head direction of motion, therefore the component in bias motion direction will not be produced, make motion It is more smooth, and due to the second facet principle parallel with the first facet, have the characteristics of identical when eccentric wheel acts on the second facet.

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 axial location, 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 arranged to：Each described punching cutter head includes top plate and set along ceiling edge sharp Portion, described fabrication window include substrate, and the forming hole being adapted with each top plate size shape is provided with described substrate, described Substrate the processing groove of paper supply piece insertion is provided with respect to the side of forming hole, the processing groove passes through each forming hole, and by it is each into Type hole is divided into slipping part and cutting part, and each described top plate sliding is arranged at corresponding slipping part, and by card to cutting Portion extrudes.

By using above-mentioned technical proposal, the setting of forming hole corresponding with each punching cutter head, makes each punching cutter on substrate Head sharp portion by corresponding forming hole by required card cut out come, and by top plate by cut out come card eject into The size shape of type hole, wherein forming hole is consistent with the size shape of required route card, and in addition, each forming hole is through adding Work groove is divided into slipping part and cutting part, and each top plate sliding is arranged at corresponding slipping part, and the shape size of slipping part and top Plate is adapted, and plays a part of guide-localization, makes top plate by being directed into corresponding cutting part, if the cunning without guide effect The setting in shifting portion, punching cutter head easily rotate by rotating shaft of the direction of motion, so as to cause top plate direction not to be adapted with cutting part, Cause to impact substrate during work, destroyed device interior.

The utility model is further arranged to：The regulation dress of regulation rotating shaft rotating speed is provided between described rotating shaft and motor Put, described adjusting means includes turbine and the worm screw being adapted to turbine, and described worm screw is set with motor synchronous axial system, described Turbine be coaxially disposed in rotating shaft, described worm screw and turbine engagement rotation coordinate.

By using above-mentioned technical proposal, because rotating shaft needs the energy of motor transmission, but the rotating speed mistake of motor output It hurry up, so will be attached between rotating shaft and motor by adjusting the adjusting means of rotating shaft rotating speed, reduce the output speed of motor Degree, wherein changing the ratio between the modulus of turbine and the head number of worm screw in adjusting means, rotating shaft can be made certainly to adjust rotating shaft rotating speed Speeds needed for body.It the advantage is that, first, turbine and worm, which is driven, has larger gearratio, and the deceleration to motor is defeated Go out to play most obvious effect, slow down according to size meshed transmission gear, its radius ratio is excessive, causes gear wheel radius excessive Take up space or little gear radius is too small does not support excessive torque；Second, turbine and worm biggest advantage is self-locking Ability, turbine rotation can only be driven by worm screw during its work, otherwise do not worked, therefore for this work of electric punch machine one week The equipment that phase needs stop motion, worm screw is arranged at motor, and with motor synchronous axial system, when operating, motor rotary worm Worm screw is driven turbine, so as to drive axis of rotation, after the completion of work, motor stop motion, make worm screw also static therewith, this When, although turbine by cam, rotating shaft, contiguous block inertia force and have the trend being rotated further, worm screw is static to cause whirlpool Wheel can not rotate along its trend, therefore cam, rotating shaft, contiguous block are also static therewith；3rd, worm tooth is continuous continual spiral shell Tooth is revolved, is that continuously, worm tooth does not enter into and exited the process of engagement when it is engaged with worm-gear toothing, therefore it is flat to work Surely, impact, vibrations, noise are all smaller.

Brief description of the drawings

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

Fig. 2 is the top view that the utility model embodiment removes decapsidate；

Fig. 3 is the installation diagram that the utility model embodiment removes decapsidate；

Fig. 4 is the enlarged drawing of A in Fig. 3；

Fig. 5 is the installation diagram of the utility model fabrication window；

Fig. 6 is the part drawing that the utility model is punched cutter head；

Fig. 7 is the part drawing of the utility model eccentric wheel；

Fig. 8 is the part drawing of the utility model rotating shaft；

Fig. 9 is the part drawing of the utility model contiguous block；

Figure 10 is the installation diagram of the utility model rotating shaft, eccentric wheel, contiguous block and adjusting means.

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-Figure 10, the utility model discloses a kind of double card electric punch machine, including shell 1, be arranged at it is outer The power take-off mechanism 4 of fabrication window 2 on shell 1, the punching cutter head 3 being arranged in shell 1 and mobile punching cutter head 3, power is defeated Going out mechanism 4 includes motor 41, the rotating shaft 42 rotated by motor 41 and the cam 43 being installed in rotating shaft 42, punching cutter head 3 Quantity is two groups, and power take-off mechanism 4 also includes the contiguous block 44 being correspondingly arranged with each punching cutter head 3, each one end of contiguous block 44 Set with the punching linkage of cutter head 3, the other end is provided with the cam chamber 441 installed for cam 43, and the outer peripheral face of cam 43 is mutually butted on respectively The inner peripheral surface of the cam chamber 441 of contiguous block 44, each cam chamber 441 are provided with the first facet 4411 and remote close to punching cutter head 3 side Punching cutter head 3 side is provided with the second facet 4412, the facet 4411 of cam 43 and first offsets and with the trend rotated to it When, each contiguous block 44 drives corresponding punching cutter head 3 to be moved towards fabrication window 2, and cam 43 offsets and had with the second facet 4412 During the oriented trend that it is rotated, each contiguous block 44 drives corresponding punching cutter head 3 to be moved away from fabrication window 2.Output machine The setting of structure 4, drive each punching cutter head 3 to move, each punching cutter head 3 is run through fabrication window 2, required card is processed, risen To the purpose for carrying out double card making simultaneously, the groundwork area of wherein power take-off mechanism 4 is arranged in rotating shaft 42 using rotation Cam 43 rotated with rotating shaft 42, and cam 43 offsets the first facet 4411 or the second facet 4412, when cam 43 rotates During first facet 4411 that offsets, the spacing between the first facet 4411 and rotating shaft 42 has the trend become larger, makes each punching cutter First 3 are moved towards fabrication window 2, and card is cut out, and depart 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, each punching cutter head 3 is moved away from fabrication window 2 It is dynamic.It the advantage is that, first：Security performance is high；Second：Energy dissipation is small；3rd：Operating efficiency is high.

As preferable, 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.The punching motion state of cutter head 3 changes Including it is following twice, motion for the first time change：Punching cutter head 3 changes to away from fabrication window 2 towards the movement of fabrication window 2 to be moved It is dynamic, change for the second time：Punching cutter head 3 is moved to stopping movement away from fabrication window 2.Preferable first facet of the present embodiment The 4411 vertical punching directions of motion of cutter head 3, when the first facet 4411 is vertically punched 3 direction of motion of cutter head, eccentric wheel 431 is to the Thrust caused by one facet 4411 will not produce the component in bias motion direction along the punching direction of motion of cutter head 3, make motion It is more smooth, and due to the second facet 4412 and 4411 parallel principle of the first facet, when eccentric wheel 431 acts on the second facet 4412 When have the characteristics of identical.

As preferable, 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 second point from the first facet 4411 Guiding and supporting role are played in face 4412 and being turned to from the second facet 4412 in the conversion process of the first facet 4411, make conversion It is 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.

The present embodiment, which is respectively punched cutter head 3, includes top plate 31 and the sharp portion 32 along the setting of the edge of top plate 31, and fabrication window 2 includes Substrate 21, the forming hole 22 being adapted with each size shape of top plate 31 is provided with substrate 21, substrate 21 is with respect to forming hole 22 Side is provided with the processing groove 23 of paper supply piece insertion, and the processing groove 23 passes through each forming hole 22, and each forming hole 22 is divided into Slipping part 221 and cutting part 222, the sliding of each top plate 31 are arranged at corresponding slipping part 221, and by card to cutting part 222 Extruding.The setting of forming hole 22 corresponding with each punching cutter head 3 on substrate 21, makes the sharp portion 32 of each punching cutter head 3 by right The forming hole 22 answered by required card cut out come, and by top plate 31 by cut out come card ejection forming hole 22, wherein The size shape of forming hole 22 is consistent with the size shape of required route card, in addition, each 22 processed groove of forming hole 23 are divided into slipping part 221 and cutting part 222, and each top plate 31, which slides, is arranged at corresponding slipping part 221, and slipping part 221 Shape size is adapted with top plate 31, plays a part of guide-localization, makes top plate 31 by being directed into corresponding cutting part 222, if the setting of the slipping part 221 without guide effect, punching cutter head 3 easily rotates by rotating shaft 42 of the direction of motion, so as to lead Top plate 31 is caused towards not being adapted with cutting part 222, causes to impact substrate 21 during work, is destroyed device interior.

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 turbine 451 and the worm screw 452 being adapted to turbine 451, and worm screw 452 is set with the synchronous axial system of motor 41, turbine 451 It is coaxially disposed and coordinates in rotating shaft 42, worm screw 452 with the engagement rotation of turbine 451.Because rotating shaft 42 needs the energy of the transmission of motor 41, But the rotating speed that motor 41 exports is too fast, thus by between rotating shaft 42 and motor 41 by adjusting the adjusting means of the rotating speed of rotating shaft 42 45 are attached, and reduce the output speed of motor 41, wherein changing the modulus of turbine 451 and worm screw 452 in adjusting means 45 The ratio between head number, rotating shaft 42 can be made in speeds needed for itself to adjust the rotating speed of rotating shaft 42.It the advantage is that, first, The transmission of the worm screw 452 of turbine 451 has larger gearratio, and most obvious effect is played in the deceleration output to motor 41；Second, whirlpool Taking turns 451 worm screws 452 has a self-lock ability, during 41 stop motion of motor, turbine 451, worm screw 452, cam 43, rotating shaft 42 and connection Block 44 is also static therewith；3rd, stable working, impact, vibrations, noise are all smaller.

The number of the present embodiment cam 43 can be 1, preferably 2.It is convex when the number of cam 43 is 1 Wheel 43 is respectively arranged at corresponding to two contiguous blocks 44 in cam chamber 441, and cam 43 rotates drives two 44 turns of contiguous blocks simultaneously It is dynamic, so as to drive punching cutter head 3 to cut card.When the number of cam 43 is 2, each cam 43 is arranged at corresponding Cam chamber 441, the advantage is that when cam 43 number be 1 when, due to needing certain safe work between contiguous block 44 Make distance, cause cam 43 excessive, and cam 43 be 2 when, each 43 need of cam are arranged to the size appropriate with cam chamber 441 .

Claims (6)

1. a kind of double card electric punch machine, including shell, the fabrication window being arranged on shell, the punching cutter head that is arranged in shell And the power take-off mechanism of mobile punching cutter head, described power take-off mechanism include motor, the rotating shaft rotated by motor and The cam being installed in rotating shaft, it is characterised in that：The quantity of described punching cutter head is two groups, and described power take-off mechanism is also Including the contiguous block being correspondingly arranged with each punching cutter head, each described contiguous block one end is set with punching cutter head linkage, the other end The cam chamber for cam installation is provided with, described peripheral cam surface is mutually butted on the inner peripheral surface of the cam chamber of each contiguous block, each institute The cam chamber stated is provided with the first facet close to punching cutter rostral and punching cutter rostral is provided with the second facet, and described is convex When wheel offsets with the first facet and has the trend to its rotation, each contiguous block drives corresponding punching cutter head to be moved towards fabrication window Dynamic, when described cam and the second facet offsets and have the trend to its rotation, each contiguous block drives corresponding punching cutter Head is away from the movement of fabrication window.

A kind of 2. double card electric punch machine according to claim 1, it is characterised in that：Described cam is eccentric wheel, institute The first facet stated is parallel to the second facet, and spacing is equal to eccentric wheel outer circumference diameter.

A kind of 3. double card electric punch machine according to claim 2, it is characterised in that：The first described facet and second point Arc transiting surface of the opening towards cam is provided between face.

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

A kind of 5. double card electric punch machine according to claim 1, it is characterised in that：Each described punching cutter head includes top Plate and the sharp portion set along ceiling edge, described fabrication window include substrate, are provided with described substrate big with each top plate The forming hole that small shape is adapted, described substrate are provided with the processing groove of paper supply piece insertion with respect to the side of forming hole, should add Work groove passes through each forming hole, and each forming hole is divided into slipping part and cutting part, and each described top plate sliding is arranged at relative The slipping part answered, and card is extruded to cutting part.

A kind of 6. double card electric punch machine according to claim 1, it is characterised in that：Set between described rotating shaft and motor The adjusting means of regulation rotating shaft rotating speed is equipped with, described adjusting means includes turbine and the worm screw being adapted to turbine, described snail Bar is set with motor synchronous axial system, and described turbine is coaxially disposed in rotating shaft, and described worm screw coordinates with turbine engagement rotation.