CN102398281A - Sheet material punching device - Google Patents

Abstract

The invention provides a sheet material punching device, which has a function switching from two holes to four holes and relatively widely applied in the European world. The sheet material punching device comprises a driving source, punch mechanism parts A and B and a mechanism switching part. The punch mechanism parts A and B respectively comprise a punch head engaging with a punch hole and punching a sheet material and a level crank mechanism for driving the punch head to punch. The mechanism switching part comprises a driving part rotating in a bidirectional way and corresponding to the driving direction of the driving source, and a driven part rotating towards a direction by connecting with the driving part. The driven part is connected with the lever crank mechanism driving the punch mechanism part A. The driving part is connected with the level crank mechanism driving the punch mechanism part B. By switching the driving direction of the driving source, the device in the invention then achieves simultaneous driving of the punch mechanism parts A and B or the independent driving of the punch mechanism part B.

Description

The sheet material punching machine

Technical field

The present invention relates to for example on the main body of duplicator, printer, facsimile machine and their image processing systems such as equipment complex; Or the punching machine that on printing machine, carries; Specifically be exactly a kind ofly to have to having the function that the perforation number of boring a hole on the various sheet materials of lamellar morphology switches, for example the sheet material punching machine of the handoff functionality in two holes and three holes etc.

Background technology

, can switch in the sheet material punching machine of perforation number in the past, and generally adopt for example patent documentation 1～4 disclosed reciprocating type drift driving mechanism, reciprocating type drift driving mechanism to make drift move point-blank towards the punch die hole on sheet material, to bore a hole more.

Patent documentation 1 disclosed drift driving mechanism constitutes; As can with perforation direction quadrature axially on set eccentric cam on the turning cylinder that moves; Wherein this eccentric cam on the rotation direction phase place of cam curve is divided into two groups and be positioned drift above; The moving direction on direction of principal axis through the turning cylinder that switches; The eccentric cam that just can make desired group is pushed the head of drift to the perforation direction, thus can be to the drift that is positioned at this eccentric cam below driving of boring a hole.

In addition; Patent documentation 2 disclosed drift driving mechanisms constitute; As can with the direction of perforation direction quadrature on set cam surface or cam path on the sliding bar that moves; Wherein this cam surface or cam path are that cam curve is divided into two groups and be positioned the top of drift; Through switching the moving direction of sliding bar, cam surface or the cam path that just can make desired group pushed the head of drift to the perforation direction, thus can be to being positioned at the driving of boring a hole of drift below this cam surface or the cam path.

In addition; Patent documentation 3 disclosed drift driving mechanisms constitute; As can with the direction of perforation direction quadrature on cam curve is divided into two groups on the sliding panel that moves and sets cam path; Through switching the moving direction of sliding panel, the cam path that just can make desired group is pushed the drift with its binding to the perforation direction, thus can to the driving of boring a hole of the drift of this cam path binding.

In addition; Patent documentation 4 disclosed drift driving mechanisms constitute, and will have the fan-shaped part of the trough of belt cam that is linking drift, with can with the direction of perforation direction quadrature on the corresponding mode of shaking of moving direction of the sliding panel that moves; Cam curve is divided into two groups sets; Through switching the moving direction of sliding panel, the fan-shaped part of desired group is shaken, thus can to the driving of boring a hole of the drift of the trough of belt cam binding of this fan-shaped part.

Wherein patent documentation 3 disclosed drift driving mechanisms have the miniaturization and the cost degradation that make the sheet material punching machine and are relatively easy to advantage.Yet; Viewpoint from the driving force transmission; Pass through sliding panel after the direction parallel with the sheet face transmitted from drive source drives power; Be transformed into the direction vertical through cam surface or cam path again, therefore follow and to produce bigger driving force loss therewith with the sheet face as the perforation direction of drift.Therefore, for the amount that compensates the driving force loss just needs enough large-scale drive source, but this becomes the obstacle that further develops the miniaturization of sheet material punching machine and cost degradation and energy-conservationization.

Therefore, the applicant has proposed to use in patent documentation 5 and has driven reciprocating type sheet material punching machine lever-crankshaft mechanism, that have simple formation that loss is lacked than above-mentioned existing drift driving mechanism.Particularly, be that drift is limited to the attaching parts that constitute lever-crankshaft mechanism, through attaching parts are shaken and formation that drift is bored a hole and driven to the perforation direction of drift.Can improve the transmission efficiency of driving force and can make the drive source miniaturization through this formation, can realize the simplification of mechanical realization in addition, can make the further miniaturization of sheet material punching machine, cost degradation and energy-conservationization.

Patent documentation 1: japanese kokai publication hei 10-296694 communique

Patent documentation 2: TOHKEMY 2001-171900 communique

Patent documentation 3: TOHKEMY 2001-198889 communique

Patent documentation 4: TOHKEMY 2003-200391 communique

Patent documentation 5: TOHKEMY 2009-255279 communique

Above-mentioned patent documentation 1～4 disclosed sheet material punching machine; The handoff functionality that all has the perforation number that any one group of eleven punch 11 of going forward side by side in the drift group that can select to be divided into two groups drives; Yet the handoff functionality of such perforation number is not indispensable function in the sheet material punching machine.In practical application, need only and the corresponding outfit of the perforation number drift that is adopted.Yet; For example mainly in European scope, use morely two holes and four holes or two holes mainly in the scope of North America, using morely and three holes etc.; Because the difference on the different or chaotic world region sexual custom of the perforation number that adopted can't be ignored, therefore expectation has the sheet material punching machine of the handoff functionality of perforation number.

According to such situation, the use that the applicant is proposed in patent documentation 5 the sheet material punching machine of lever-crankshaft mechanism added the handoff functionality with the same perforation number of patent documentation 1～4, strong in addition expectation realizes miniaturization and cost degradation.

Summary of the invention

The object of the present invention is to provide a kind of sheet material punching machine; It has possessed in patent documentation 5 use that the proposes drift driving mechanism of lever-crankshaft mechanism; And sheet material punching machine with simple structure formation with the handoff functionality that switches in the perforation number that wears on the sheet material; For example can select more distance between borehole that mainly circle uses in Europe two holes or four holes aptly, at the enterprising eleven punch 11 of sheet material as 80mm etc.

The present invention makes in view of above-mentioned problem.

Promptly; The present invention is a kind of sheet material punching machine; It is characterized in that, drive source, two groups of A of plunger mechanism portion, B and switching mechanism portions, the above-mentioned plunger mechanism A of portion, B possess respectively: through drift of on sheet material, boring a hole and the lever-crankshaft mechanism that this drift is bored a hole and driven with the engagement of punch die hole; Above-mentioned switching mechanism portion has: initiative part, and itself and above-mentioned drive source drives direction are rotated to twocouese accordingly; Follower; Through linking with above-mentioned initiative part and rotating to a direction; Above-mentioned follower links with the lever-crankshaft mechanism that drives the above-mentioned plunger mechanism A of portion, and above-mentioned initiative part links with the lever-crankshaft mechanism that drives the above-mentioned plunger mechanism B of portion, through switching above-mentioned drive source drives direction; Switching is to drive when carrying out the above-mentioned plunger mechanism A of portion, B, still carries out the single driving of the above-mentioned plunger mechanism B of portion.

In the present invention; Preferably can be suitable for following machinery constitutes: above-mentioned initiative part possesses and is configured to circular a plurality of teeth; Above-mentioned follower possesses a plurality of teeth corresponding with the odontoid of above-mentioned initiative part; Through being meshing with each other of tooth that above-mentioned initiative part and above-mentioned follower possessed, above-mentioned follower and above-mentioned initiative part are linked and rotating.

In addition; Machinery in above-mentioned switching mechanism portion below preferred being suitable for constitutes: the tooth of above-mentioned initiative part has: on the rotation direction that above-mentioned initiative part and above-mentioned follower link as the preceding flank of tooth of front side with as the back flank of tooth of rear side, the plane that comprises the above-mentioned preceding flank of tooth be formed 70～110 with the vertical inclination angle that the plane became of the center of rotation of above-mentioned initiative part and spend.

In addition, the machinery below preferred being suitable for constitutes in the above-mentioned plunger mechanism A of portion, B: above-mentioned lever-crankshaft mechanism possesses: with above-mentioned switching mechanism portion's binding and the crankshaft component that carries out rotational motion; The lever part that one end can joltily be supported; Set up drift and link the attaching parts of above-mentioned crankshaft component and above-mentioned lever part; Support the fixed part of an above-mentioned end of turning cylinder and the above-mentioned lever part of above-mentioned crankshaft component, above-mentioned attaching parts are shaken to the perforation direction of drift through the rotational motion of above-mentioned crankshaft component, thereby to the driving of boring a hole of above-mentioned drift.

In addition, the machinery below preferred being suitable for constitutes, and possesses stop mechanism portion in the above-mentioned lever-crankshaft mechanism, and above-mentioned stop mechanism portion suppresses the rotational motion of above-mentioned crankshaft component, perhaps suppresses shaking of above-mentioned lever part.

In addition; The above-mentioned plunger mechanism A of portion, B possess two drifts respectively; The drift of the above-mentioned plunger mechanism A of portion is configured in both end sides, drives in the time of through the above-mentioned plunger mechanism A of portion, B and on sheet material, wears four holes, on sheet material, wears two holes through the one-sided driving of the above-mentioned plunger mechanism B of portion.

Sheet material punching machine of the present invention is through switching the drive source drives direction, can be simultaneously to two groups of A of plunger mechanism portion, B driving of boring a hole, and can be to side's plunger mechanism B of portion driving of boring a hole.Therefore; In two groups of A of plunger mechanism portion, B; For example possess drift accordingly, thereby can wear four holes, and wear two holes through the plunger mechanism B portion that drives a side through driving two groups of A of plunger mechanism portion, B simultaneously with two holes of on sheet material, boring a hole or the position in four holes.In addition; Sheet material punching machine of the present invention is suitable for the perforation driving mechanism that is made up of simple mechanical realization; Therefore the lever-crankshaft mechanism that this perforation driving mechanism has used the driving force loss to lack than the existing mechanism that in patent documentation 5, proposes has concurrently and makes the more effective advantage of miniaturization and cost degradation and energy-conservationization.

Description of drawings

Fig. 1 is the formation of expression as the sheet material punching machine of an example of the present invention, is that vertical view, (b) are front views (a).

Fig. 2 is the vertical view that amplifies the formation of the C of switching mechanism portion shown in the ground presentation graphs 1 (a).

To be expression begin the A of portion of driven punch mechanism simultaneously, B and worn the front view of the state in four holes at sheet material from the position of readiness shown in Fig. 1 (b) Fig. 3.

Fig. 4 is from representing to begin the B of portion of driven punch mechanism from the position of readiness shown in Fig. 1 (b) with the rightabout viewpoint of Fig. 1 (b), on sheet material, having worn the front view of the state in two holes.

Fig. 5 omits C of switching mechanism portion and the B of plunger mechanism portion etc. for the clear and definite plunger mechanism A of portion, represent to use the front view of sheet material punching machine shown in Figure 1 a series of perforation action under the situation that wears four holes on the sheet material.

Fig. 6 is the vertical view of expression by an example of the switching mechanism portion that forms with Fig. 2 various structure.

Description of reference numerals: 1... punching machine; A, B... plunger mechanism portion; C... switching mechanism portion; 2Aa, 2Ab, 2Ba, 2Bb... drift; 3Aa, 3Ab, 3Ba, 3Bb... punch die hole; 4A, 4B... crankshaft toothed wheel; 5A, 5B... swing arm; 6A, 6B... linking arm; 7... punch carrier; 8... frame; 9... motor; 10... gear; 11A, 11B... secondary gear; 12A, 12B... axle; 13A, 13B... drive pin; 14... pin; 15A, 15B... pin; 16Aa, 16Ab, 16Ba, 16Bb... drift guide portion; 17Aa, 17Ab, 17Ba, 17Bb... slotted hole; 18Aa, 18Ab, 18Ba, 18Bb... card shotpin; 19A, 19B... axle; 20... punch die frame; 30Aa, 30Ab, 30Ba, 30Bb... drift installation portion; 31Aa, 31Ab, 31Ba, 31Bb... set bolt; 41A, 41B... spring; 42... axle; 43... initiative part; 43a, 43b... gear; 43A... profile of tooth; 43Aa... the preceding flank of tooth; 43Ab... the back flank of tooth; 44... follower; 44Aa... gear; 44A... profile of tooth; 44Aa, the 44Ab... flank of tooth; 49... arrow; 50A, 50B... brake cam; 51A, 51B... retaining spring; 108... frame; 109... motor; 110,111,112... gear; 113... axle; 141A... spring; 142... axle; 143... initiative part; 143a... gear; 143A... profile of tooth; 144... follower; 144a... gear; 144A... profile of tooth.

The specific embodiment

Sheet material punching machine of the present invention possesses as basic comprising: drive source, two groups of A of plunger mechanism portion, B and switching mechanism portions, the above-mentioned plunger mechanism A of portion, B possess respectively: through more than one drift of on sheet material, boring a hole and the lever-crankshaft mechanism that this drift is bored a hole and driven with the engagement of punch die hole.Key character with sheet material punching machine of the present invention of such basic comprising is; By after the mechanical structure of the switching mechanism portion that states; Only through to select and switch the so simple control of drive source drives direction, just can select and switch be single driving one side's the B of plunger mechanism portion, perhaps drive two groups of A of plunger mechanism portion, B simultaneously.

Switching mechanism of the present invention portion has: initiative part, and it is positioned at the distolateral of the A of plunger mechanism portion, B, and links with drive source and rotate to twocouese accordingly with the switching of drive source drives direction; Follower, itself and above-mentioned initiative part link and rotate to a direction, on follower, link the plunger mechanism A of portion, on initiative part, link the plunger mechanism B of portion.This machinery constitutes particular importance and is characterised in that, and is corresponding with the switching of drive source drives direction, keeps the binding of follower to initiative part, perhaps removes the binding of follower.

Below, the initiative part and the follower of switching mechanism portion important among the present invention are described.

The mechanical type of initiative part constitutes among the present invention: have and drive source and follower link, and the formation that can rotate to twocouese accordingly with the switching of drive source drives direction.Therefore; Initiative part for example has following formation; That is, if drive source is source of rotational drive such as motor, have mechanical part such as gear therefore its rotational motion can carry out self rotational motion; If drive source is a cylinder isoline drive source, has mechanical type mechanisms such as rack pinion and bent axle so its rectilinear motion and can carry out the rotational motion of self.

In addition, the B of plunger mechanism portion that initiative part has directly or indirectly with a side links, and drives the formation of the B of this plunger mechanism portion with the drive source drives orientation independent.For example, initiative part is delivered to self rotational motion and links the B of plunger mechanism portion that mechanical parts such as gear are arranged as rotational motion.In addition, initiative part also links the follower that an oriented direction is rotated.

In the present invention, the mechanical type of follower constitutes: have when self and initiative part link and can accept the formation of the rotational motion of initiative part as the rotational motion of self.Also have and can be directly or indirectly link with the opposing party's the A of plunger mechanism portion, and to its formation that drives.Therefore; Constituting of follower structure; The connect mechanism of stating after using for example and between the initiative part etc., and the rotational motion of the initiative part of accepting to be linked is as the rotational motion of self, the rotational motion of accepting is delivered to as rotational motion link the A of plunger mechanism portion that mechanical parts such as gear are arranged.

Constitute above-mentioned in the follower that a direction is rotated; For example; Can use the engagement system of carrying out or friction or utilized the one-way clutch mechanism such as crimping mode of magnetic, the ratchet mechanism of mode that the rotating direction that internally wraps axle with gear mode with brakes such as pawls and retainer is given directive property etc., used the connect mechanism of one-way clutch parts etc. of the market sale of said mechanism through gear; And can be with their outlet side as follower, with input side as initiative part.

In addition, the key character of follower is among the present invention, and it is to link the formation of rotating to a direction with initiative part.At this; The formation that " links to a direction rotation with initiative part " is meant; Rotation through switching the drive source drives direction with arbitrary direction of the initiative part that rotates to twocouese links; Make and self rotate, therefore self do not rotate, even perhaps be in the state that links with initiative part but owing to removed with the binding of initiative part thereby self do not rotate and do not link with the rotation to other direction of initiative part to a direction.

In the process that constitutes the special connection relationship of such initiative part and follower; Mechanical structure below preferred; For example; Possess for initiative part and to be configured to circular a plurality of teeth, possess a plurality of teeth corresponding with the odontoid of initiative part for follower, the engagement of the tooth through initiative part and follower links follower and initiative part.Utilize the mechanical type engaging structure of such profile of tooth; Compare with a gear mode with brakes such as pawls or an internal structure of the detent mechanism of the mode of giving directive property of wrapping with the above-mentioned one-way clutch mechanism of magnetic of utilizing of use; Have and mechanical structure is oversimplified and be prone to miniaturization and lightweight, can carry out numerous advantages such as driving force transmission expeditiously.

In addition, in the structure that initiative part and follower link, utilized in use under the situation of engaging structure of above-mentioned profile of tooth, between the flank of tooth that the engagement through profile of tooth contacts, carried out from driving wheel to the driven pulley transmission of drive force.The above-mentioned inclination angle of the flank of tooth that at this moment, reduces more to mesh then transmission efficiency reduces more.Therefore; Preferably; The tooth that uses as the profile of tooth of above-mentioned initiative part is formed with: on the rotation direction that initiative part and follower link as the preceding flank of tooth of front side with as the back flank of tooth of rear side, and by the plane of the flank of tooth before comprising with form 70～110 with the vertical inclination angle that the plane became of the center of rotation of initiative part and spend.Particularly, in the time of near the inclination angle is 90 degree, receive the influence of the contact friction of tooth each other hardly, so transmission of drive force expeditiously.

Yet,,, thereby make the rapid deterioration of transmission efficiency of driving force because the influence of the slip that produces between the flank of tooth makes the crimp force because of the engagement generation of profile of tooth become very few if this inclination angle is set at less than 70 degree.According to circumstances different, the engagement of the profile of tooth unstable therefore follower that becomes does not rotate sometimes.In addition; Surpass 110 degree if set this inclination angle, then only have the gap with the angular difference of 90 degree, therefore be prone to make because the initial actuating of the rotating drive that the engagement of profile of tooth causes becomes unstable; In addition, because the crown attenuation of each tooth causes that the easy generation of the not enough therefore crown of mechanical strength is damaged.

Utilized the formation of above-mentioned profile of tooth through use, under the situation of rotating, can more stably keep the initiative part that engagement produced of profile of tooth and the connecting state of follower wanting follower and initiative part linked.In addition; Owing to can form the inclination of the back flank of tooth of the tooth of the profile of tooth that constitutes initiative part aptly; Therefore under the situation that follower is not wanted to rotate with the initiative part binding; Because the tooth of initiative part side moves on the tooth of follower side and crosses, and therefore can realize the non-linking status of consequent initiative part and follower more reliably.

Because sheet material punching machine of the present invention has above-mentioned switching mechanism portion; Therefore link through lever-crankshaft mechanism and follower the A of plunger mechanism portion; Thereby the rotation to a direction by this follower comes the A of portion of driven punch mechanism; Lever-crankshaft mechanism and initiative part through with the B of plunger mechanism portion link, thereby come the B of portion of driven punch mechanism by the rotation to both direction of this initiative part.

For example; In the above-mentioned A of plunger mechanism portion, B; Through on the A of plunger mechanism portion, possessing two drifts; So that its hole site with two holes of on sheet material, boring a hole and four holes is corresponding and distance between borehole is 80mm etc.; The drift of the A of plunger mechanism portion is configured in both end sides, and the drift of the B of plunger mechanism portion is configured in its inboard, thereby can obtain to have the sheet material punching machine of a conduct example of the present invention that can be chosen in the handoff functionality of using morely in the European scope that wears two holes or four holes.In this case, drive in the time of through the A of plunger mechanism portion, B and can wear four holes, the single driving through the B of plunger mechanism portion can wear two holes.At this moment, constitute the drift row through all drifts are alignd on straight line, thereby can be configured in the hole row of boring a hole on the sheet material on the straight line.

In addition, sheet material punching machine of the present invention as the mechanical type mechanism of in the A of plunger mechanism portion, B, drift being bored a hole and driving, is suitable for lever-crankshaft mechanism.Therefore can realize following function effectively with simple mechanical structure: drive source drives power is passed to drift efficiently via switching mechanism portion through crank mechanism; Through lever structure while amplify driving force with straight line to the drift driving of boring a hole, therefore can realize miniaturization, cost degradation and energy-conservationization of plunger mechanism portion etc.

As stated, sheet material punching machine of the present invention can be as the reciprocation type sheet material punching machine of changeable perforation number to sheet material, is particularly suitable for being equipped on office equipment such as the duplicator that uses copy paper etc. or its after-treatment device.In addition, can be various sheet materials as the sheet material of the perforation object of sheet material punching machine of the present invention with lamellar morphology, for example, also can be applicable to the material that constitutes by paper, resin, food, timber, metal, pottery or their composite etc.

Next, the lever-crankshaft of the present invention mechanism that drift is bored a hole and driven is described in the A of plunger mechanism portion, B.

As the lever-crankshaft mechanism that uses in the present invention, can be suitable for following machinery and constitute, possess: crankshaft component, rotational motion is carried out in its switching mechanism portion binding with the invention described above; Lever part, the one of which end can joltily be supported; Attaching parts, it has been set up drift and has linked crankshaft component and lever part; Fixed part, an above-mentioned end of the turning cylinder of its supporting crankshaft parts and lever part shakes attaching parts through the rotational motion of crankshaft component to the perforation direction of drift, thereby to the drift driving of boring a hole.

At this; Lever-crankshaft mechanism belongs to the mechanical type mechanism of hinge four-bar mechanism; Wherein this hinge four-bar mechanism has four connecting rods usually; And all above-mentioned connecting rods all constitute hinge through revolute pair, are to have fixed the mechanical type mechanism that in the above-mentioned connecting rod minimum connecting rod of length forms the connecting rod of revolute pair.That is, this lever-crankshaft mechanism is meant, constitutes constituting in four connecting rods of hinge by revolute pair, and one is the stationary links of not moving, and comprises the mechanical type mechanism that three connecting rods of the connecting rod that length is minimum can move.

In addition, usually the connecting rod with rotational motion is called bent axle, and the connecting rod of swing movement is called lever, and the connecting rod that links this lever and above-mentioned bent axle is called pitman.And above-mentioned bent axle is the minimum connecting rod of length.In addition, above-mentioned revolute pair is meant, in the combination section that adjacent connecting rod is interconnected interconnective contact portion in the structure of moving.In above-mentioned formation, bent axle is corresponding to above-mentioned crankshaft component, and lever is corresponding to above-mentioned lever part, and pitman is corresponding to above-mentioned attaching parts, and fixed bar is corresponding to the said fixing parts.

In above-mentioned lever-crankshaft mechanism, attaching parts are shaken to the perforation direction of drift through the rotational motion of crankshaft component.And, through attaching parts are shaken to the perforation direction, thereby to the drift that links with this attaching parts driving of boring a hole.Therefore; Through constituting with transmitting as input to crankshaft component as the driving force of transmitting from the output of switching mechanism portion; To be delivered to the plunger mechanism A of portion, B lever-crankshaft mechanism separately from the driving force of drive source via switching mechanism portion thus, thereby can drive them.

When shaking attaching parts, the drift of setting up above that can be followed attaching parts shaking therefore to the driving of perforation direction to the perforation direction.Therefore, be used for the bore a hole loss of the driving force that drives and transmit from drive source of drift, its action direction not have bigger conversion, so can the loss of driving force be limited in Min..In addition, can make the drive source miniaturization, the bore a hole load of the driving mechanism portion that drives of drift reduced thereby make to put on because therefore the amount of driving force loss reduces.Therefore the drift number of on attaching parts, being set up is many more effective more, is applicable to for example to wear two holes, three holes, four holes, wear more the sheet material punching machine of porous and can bring into play higher action effect more.

In addition, through the attaching parts that constitute lever-crankshaft mechanism are set up more than one drift, and with these attaching parts along the configuration of sheet width direction, thereby be configured for being formed on the drift row of the hole row of boring a hole on the sheet material.Attaching parts can be shaken to the perforation direction of drift through the rotational motion of crankshaft component between crankshaft component and lever part.At this, the perforation direction of drift is meant, the direction vertical with the sheet face of sheet material is corresponding to carrying the vertical in fact direction of the face of putting with sheet material as the said fixing parts of stationary links.

Therefore, through in advance attaching parts being set up drift, drive and do not change the action direction of driving force thereby can directly bore a hole to drift to the perforation direction.Here, attaching parts being set up under the situation of drift, can be spindle unit to be set wait the formation that directly is attached to attaching parts on drift, for example, can also be the formation that between drift and attaching parts, is provided with, sets up drift card stop element etc.

In addition, the method that the lever-crankshaft mechanism that possesses according to above-mentioned switching mechanism portion and the A of each plunger mechanism portion, B links might make the position of readiness of drift after driving perforation become unstable.For example; Under situation for the switching mechanism portion that used initiative part that the engagement that utilizes above-mentioned profile of tooth constitutes and follower; When the tooth of initiative part side moves on the tooth of follower side and crosses, on the direction that opposing is crossed to the profile of tooth imposed load of follower (below be called cross counter-force).At this moment, also not necessarily rotate even counter-force is crossed in the profile of tooth effect of follower, but hypothesis is under the situation of having rotated, the crankshaft component that forms the lever-crankshaft mechanism that links with follower becomes the state of rotational motion, therefore can be to the drift driving of boring a hole.

Under such situation that the drift vibration might take place inadvertently; When the crankshaft component that forms lever-crankshaft mechanism perhaps constitutes lever part; Preferably to crankshaft component or lever part be provided with vibration proof mechanism (below; Be called stop mechanism), suppress the unnecessary vibration of crankshaft component or lever part.For example; Following stop mechanism be can be suitable for, that is, the elastic force of spring and the pressing force of cam etc. utilized; Side at desired area is provided with protuberance; Opposite side is provided with and protuberance shape corresponding concave part, thereby keeps protuberance to be embedded in the state of recess, links the driving force of being transmitted through follower and initiative part and can remove above-mentioned embedding state.

Next, enumerate the inventor and think preferred concrete formation, sheet material punching machine of the present invention is at length explained.

Fig. 1 is the sheet punching machine 1 with two groups of A of plunger mechanism portion, B (below, be called punching machine 1) as an example of the present invention.Fig. 1 (a) is a holding state of representing punching machine 1 from the viewpoint of top, and Fig. 1 (b) is a holding state of representing punching machine 1 from the viewpoint of the paper feed direction of sheet material (not shown).In addition, Fig. 2 (a) is the enlarged drawing of the C of switching mechanism portion shown in Fig. 1 (a).In addition, Fig. 2 (b) is near the enlarged drawing of profile of tooth 43A that initiative part possesses.Here, punching machine 1 is an example, can be chosen in which side configuration plunger mechanism A of portion, B and follower etc. aptly.

Punching machine 1 shown in Figure 1 possesses: two groups of A of plunger mechanism portion, B, they be the mode that is parallel to each other with each linking arm 6A, the 6B that forms lever-crankshaft mechanism along with the direction of the throughput direction quadrature of sheet material, be the configuration of sheet width direction; Punch die frame 20; As the motor 9 of drive source, its be configured to the sheet width direction one distolateral to make turning cylinder and linking arm 6A, 6B be equidirectional; The C of switching mechanism portion, its be positioned at the A of plunger mechanism portion, B one distolateral, be the distolateral and link motor 9 and the A of plunger mechanism portion, B of sheet width direction.Here, as the sheet material of perforation object be inserted into by punch die frame 20 and punch carrier 7 forms in the narrow space of drift row, the direction that this drift is listed as is promptly corresponding with the sheet width direction.

In punching machine 1; The A of plunger mechanism portion, B possess respectively: on sheet material, bore a hole one with upper punch and lever-crankshaft mechanism that they are bored a hole and drive, and respectively by the crankshaft toothed wheel 4A that forms lever-crankshaft mechanism, 4B and the binding of the C of switching mechanism portion side.The driving force that each crankshaft toothed wheel 4A, 4B can accept to transmit from the output of the C of switching mechanism portion is as the input to each lever-crankshaft mechanism.

The A of plunger mechanism portion along the length direction of linking arm 6A, be that the sheet width direction has been set up two drift 2Aa, 2Ab; Through with four punch die holes that are arranged on along the sheet width direction on the punch die frame 20 in two punch die hole 3Aa, 3Ab engagement, thereby can on sheet material, wear two holes.In addition; The B of plunger mechanism portion has set up two drift 2Ba, 2Bb along the length direction of linking arm 6B equally on the position of drift 2Aa, 2Ab of staggering; Through with above-mentioned four punch die holes in two punch die hole 3Ba, 3Bb engagement, thereby the position of the punch position of the A of the plunger mechanism portion of staggering that can be on sheet material wears two holes.

The C of switching mechanism portion is that the switching according to the drive source drives direction decides is B of portion of driven punch mechanism or the mechanical type mechanism of the B of portion of driven punch mechanism not.The C of switching mechanism portion of punching machine 1; Have as basic comprising: initiative part 43 and follower 44; Wherein initiative part 43 is by the 42 rotatable earth's axis supportings of an axle; These two ends of 42 are fixedly installed on and are used for fixing on the frame 8 that is provided with as the motor 9 of drive source, and to be configured in the sheet material throughput direction be on the vertical direction of the A of plunger mechanism portion, the linking arm 6A of B, 6B.In the present invention through adopting the formation that initiative part 43 and follower 44 is provided in the above-mentioned that kind on the axle 42 vertical with the A of plunger mechanism portion, B, thus can be easily with the C of switching mechanism portion miniaturization on the sheet width direction.

Be provided in the initiative part 43 on the axle 42; By having and be fixedly installed on that gear 10 on the turning cylinder of motor 9 links and at the gear 43a that is positioned at the A of plunger mechanism portion side on the direction of axle 42 with on the direction of axle 42, be positioned at the gear 43b of the B of plunger mechanism portion side, and the parts that form as one constitute.Gear 43a has to the outstanding profile of tooth 43A of axle 42 directions and with linking arm 6A and sets abreast, and is that the switching of driving direction of center of rotation and motor 9 is to rotating to twocouese with axle 42 with gear 43b.And the gear 43a that constitutes initiative part 43 can link with follower 44 sides on the position of profile of tooth 43A.

Be provided in the follower 44 of axle on 42, constitute by possessing to the outstanding profile of tooth 44A of axle 42 directions and with gear 44a that linking arm 6A sets abreast.And, the profile of tooth 43A of the profile of tooth 44A of follower 44 and initiative part 43 arranged opposite mutually on axle 42 directions, and push driving shaft 43 sides aptly by the elastic force of spring 41A.In addition, for the balance aptly of pushing of spring 41A, initiative part 43 is also pushed driven shaft 44 sides by spring 41B.Here, under the situation of formation shown in Figure 2,, also can replace spring 41B and the cartridge etc. of specific length is set as long as initiative part 43 is not the formation from easily retreating with the position of engagement of follower 44.

In addition; In the C of switching mechanism portion; Link the gear 43b binding that secondary gear 11B that sets abreast by the supporting of axle 19B axle and with linking arm 6B and initiative part 43 are possessed by axle 19A axle supporting and with linking arm 6A secondary gear 11A that sets abreast and the gear 44a that follower 44 is possessed.And, link with secondary gear 11A by axle 12A axle supporting and with crankshaft toothed wheel 4A that linking arm 6A sets abreast, by the supporting of axle 12B axle and the crankshaft toothed wheel 4B and the secondary gear 11B binding that set abreast with linking arm 6B.

Therefore, as the driving force of the motor 9 of drive source, at first be delivered to gear 43a that constitutes initiative part 43 and the gear 43b that forms with this gear 43a, and then be delivered to the crankshaft toothed wheel 4B of the B of plunger mechanism portion side via secondary gear 11B via gear 10.Perhaps under the situation that follower 44 and initiative part 43 link, simultaneously, the driving force that the gear 43a of formation initiative part 43 is transmitted is delivered to follower 44 via profile of tooth 43A, and then is delivered to the crankshaft toothed wheel 4A of the A of plunger mechanism portion side via secondary gear 11A.

The binding of above-mentioned initiative part 43 and follower 44 constitute relate to, to the profile of tooth 43A of the initiative part 43 of follower 44 side-prominent configurations; And have equal formation to the profile of tooth 44A of the follower 44 of initiative part 43 side-prominent configurations, and each other with the axle 42 that connects self be the center circle ring-type possess 8 teeth.And each tooth of profile of tooth 43A has the odontoid that preceding flank of tooth 43Aa that becomes the front side on the rotation direction with the initiative part 43 that links at follower 44 and the back flank of tooth 43Ab that becomes rear side form main face.In addition; In each tooth of profile of tooth 43A; Main two sides form towards the inclination angle of crown, that is, and the plane of flank of tooth 43Aa before comprising, with as the turning cylinder plane orthogonal of the center of rotation of initiative part 43 that is the inclination angle that is become with axle 42 plane orthogonal; Approximately form 90 degree, likewise approximately form 60 degree with the inclination angle that the plane became that comprises back flank of tooth 43Ab.

On the other hand, the profile of tooth 44A of follower 44 as stated, is that the center is to possess 8 teeth with the opposed mode of the profile of tooth 43A of initiative part 43 circularly with axle 42.And in each tooth of profile of tooth 44A, the main inclination angle that the two sides became on the crown direction has the corresponding odontoid of each odontoid with the profile of tooth 43A of initiative part 43.Promptly; In each tooth of the profile of tooth 44A of follower 44; The inclination angle that is become with the corresponding flank of tooth 44Aa of preceding flank of tooth 43Aa of each tooth of the profile of tooth 43A of initiative part 43 approximately forms 90 degree, likewise approximately forms 60 with inclination angle that flank of tooth 43Ab corresponding flank of tooth 44Ab in back is become and spends.

In the inactive state that Fig. 2 representes, the profile of tooth 44A of the profile of tooth 43A of initiative part 43 and driven pulley 44 sees it is to be in by the elastic force of spring 41A, 41B and the state that meshes from appearance.Afterwards; If make initiative part 43 when the direction of arrow of representing with solid line is rotated through drive motors 9; Then each tooth of profile of tooth 43A is further near each tooth of corresponding profile of tooth 44A; And move with the mode that increases the crimp force between the flank of tooth, therefore the engagement between profile of tooth 43A and profile of tooth 44A can be kept, thereby follower 44 rotations can be made.On the other hand; If initiative part 43 is rotated to the direction of arrow that dots through drive motors 9; Then each tooth of profile of tooth 43A moves with the mode of each tooth of leaving corresponding profile of tooth 44A; Therefore final because each tooth of profile of tooth 43A moves on each tooth of corresponding profile of tooth 44A and crosses, and therefore can not keep the engagement of profile of tooth 43A and profile of tooth 44A, therefore can not make follower 44 rotations.

Therefore; Punching machine 1 is through switching the driving direction as the motor 9 of drive source; Can select and drive A of plunger mechanism portion that switching and follower 44 links and the B of plunger mechanism portion that links with initiative part 43 time, the single driving of the B of plunger mechanism portion that perhaps links with initiative part 43.And to drive the A of plunger mechanism portion, B the time be four drift 2Aa, 2Ab, 2Ba, 2Bb to be bored a hole to drive make they and punch die hole 3Aa, 3Ab, 3Ba, 3Bb mesh, thereby can on sheet material, wear four holes.In addition, the single driving of the B of plunger mechanism portion is two drift 2Ba, 2Bb to be bored a hole to drive make they and punch die hole 3Ba, 3Bbc mesh, thereby can on sheet material, wear two holes.That is, punching machine 1 has through switching drive source drives direction, and will select and switch to the handoff functionality in two holes or four holes to the perforation number of sheet material.

Switching mechanism of the present invention portion is not limited to above-mentioned formation.For example; Fig. 6 representes an example of the switching mechanism portion that other type constitutes; That is, in the above-mentioned C of switching mechanism portion, reconfiguring motor 9, is that gear 10 and the spur gear of adjusting actuating speed and driving torque are that parts such as secondary gear 11A, 11B are replaced with bevel gear.

The switching mechanism portion that Fig. 6 representes has: axle 142, and its two end axles is supported on the frame 108 that fixedly installs motor 109, becomes the axle of the initiative part 143 that can constitute rotationally to twocouese; With 142 be the follower 144 of center of rotation with this.

Constitute the axle 142 of initiative part 143, have profile of tooth 143A, have profile of tooth 143a, and both link with motor 109 and follower 144 at opposition side in follower 144 sides of axle 142 directions.Particularly; Initiative part 143 is via by the gear 111 of 113 supportings of axle with by the gear 112 of 142 supportings of axle with respect to motor 109; Link with the gear that is fixedly set in motor shaft 110, and link, thereby can be center of rotation with axle 142 through profile of tooth 143A and driven pulley 144; Corresponding with the switching of motor 109 driving directions, can rotate to twocouese.In addition, be fixedly set in axle 142 gear 112 and also can be contained in initiative part 143.

In addition, follower 144 is made up of the gear 144a that has to the outstanding profile of tooth 144A of axle 142 directions.And, the profile of tooth 143A of the profile of tooth 144A of follower 144 and initiative part 143, phase arranged opposite on axle 142 directions, profile of tooth 143 sides of moderately pushing initiative part 143 by the elastic force of spring 141A.And; Crankshaft toothed wheel 4A by the supporting of axle 12A axle is connected with the gear 144a that follower 144 has; And be connected with the gear 143a that initiative part 143 has by the crankshaft toothed wheel 4B of axle 12B axle supporting, can the driving force of motor 109 be transmitted to the A of plunger mechanism portion, B through this formation.

Particularly, make initiative part 143 under the situation that the direction of arrow of representing with solid line is rotated through drive motors 109, the driving force of motor 109 is transmitted to the crankshaft toothed wheel 4B of the B of plunger mechanism portion side from gear 143a.Simultaneously, because profile of tooth 143A and profile of tooth 144A engagement, follower 144 and initiative part 143 are linked and rotate, so the gear 144a that the driving force of motor 109 possesses from follower 144 is to the crankshaft toothed wheel 4A of the A of plunger mechanism portion side transmission.

On the other hand, make initiative part 143 under the situation that the direction of arrow that dots is rotated through drive motors 109, the driving force of motor 9 is transmitted to the crankshaft toothed wheel 4B of the B of plunger mechanism portion side from gear 143a equally.Yet; In follower 144 sides; The profile of tooth 144A of the profile of tooth 143A of initiative part 143 and follower 144 is owing to moving on each tooth and crossing; Therefore no longer engagement and follower 144 are not connected with initiative part 143 thereby do not rotate, thereby the driving force of motor 109 can not be transmitted to the crankshaft toothed wheel 4A of the A of plunger mechanism portion side.

Therefore; Even formation according to above-mentioned switching mechanism portion shown in Figure 6; Through switching driving direction, also can obtain following function: follower 144 and initiative part 143 are linked and rotate, or do not link follower 144A and therefore do not rotate as the motor 109 of drive source.

Next, the A of plunger mechanism portion of punching machine 1, the lever-crankshaft mechanism that B possesses are separately described.

In punch device 1, the crankshaft toothed wheel 4A of the A of plunger mechanism portion side links via the gear 44a of secondary gear 11A and follower 44, and the crankshaft toothed wheel 4B of the B of plunger mechanism portion side links via the gear 43b of secondary gear 11B and initiative part 43.Particularly, the A of plunger mechanism portion comprises: crankshaft toothed wheel 4A, and it is as the crankshaft component that carries out rotational motion; Swing arm 5A, it can shake as an end and the other end is carried out the lever part of axle supporting by pin 14; Linking arm 6A, it is as the attaching parts that link swing arm 5A and crankshaft toothed wheel 4A and set up drift 2Aa, 2Ab; Punch carrier 7, itself and the sheet face of sheet material arranged opposite mutually; And the above-mentioned pin 14 and pin 15A that connect above-mentioned parts.

Likewise, the B of plunger mechanism portion comprises: crankshaft toothed wheel 4B, and it is as the crankshaft component that carries out rotational motion; Swing arm 5B, it can shake as an end and the other end is carried out the lever part of axle supporting by pin 14; Linking arm 6B, it is as the attaching parts that link swing arm 5B and crankshaft toothed wheel 4B and set up drift 2Ba, 2Bb; Punch carrier 7, itself and frame 8 are as fixed part; And the above-mentioned pin 14 and pin 15B that connect above-mentioned parts.

In lever-crankshaft mechanism, constitute as crankshaft toothed wheel 4A, the 4B of driving force input side: the position at distance axis 12A, 12B predetermined distance possesses drive pin 13A, 13B respectively, and can rotate around axle 12A, 12B respectively.And, make crankshaft toothed wheel 4A, 4B carry out rotational motion through the rotation of motor 9 and via the C of switching mechanism portion, so drive pin 13A, 13B can describe rotary motion trace with the radius of gyration of regulation and carry out rotational motion.Therefore, crankshaft toothed wheel 4A, 4B can have the crankshaft component that becomes formation lever-crankshaft mechanism as the function of bent axle.

The drive pin 13A that linking arm 6A, 6B and crankshaft toothed wheel 4A, 4B are possessed, 13B link, and link via pin 15A, 15B and swing arm 5A, 5B, the hole column direction configuration of linking arm 6A, 6B 3Aa, 3Ab along the punch die hole.Constitute through this, linking arm 6A, 6B can be on one side with drive pin 13A, 13B and swing arm 5A, the 5B bindings of crankshaft toothed wheel 4A, 4B, and one side is shaken for shaking fulcrum with the position of drive pin 13A, 13B and pin 15A, 15B.Therefore, linking arm 6A, 6B can have the attaching parts that become formation lever-crankshaft mechanism as the function of pitman.

The end of swing arm 5A, 5B is fixedly set in the pin 14 by 7 supportings of punch carrier, and the other end links via pin 15A, 15B and linking arm 6A, 6B.And, thereby can rotate by punch carrier 7 fulcrum posts 14.Through this formation, swing arm 5A, 5B can shake for shaking fulcrum with pin 14.Therefore, swing arm 5A, 5B can have the lever part that becomes formation lever-crankshaft mechanism as the function of lever.Here, the supporting of swing arm 5A, 5B one end can have as the fixed part of stating after the function of stationary links by any one and carries out.

In addition, on above-mentioned pin 14, be set with: with swing arm 5A become one brake cam 50A that rotates synchronously and the brake cam 50B that becomes one and rotate synchronously with swing arm 5B.In addition, on punch carrier 7, be set with retaining spring 51A, 51B, this retaining spring 51A, 51B have protuberance relative with each recess that is formed at brake cam 50A, 50B respectively and that can embed respectively.Through this formation; By moving of pin 14; Under the situation that any one of the protuberance of retaining spring 51A, 51B or whole position that all is in embedding brake cam 50A, 50B recess concern; As long as the driving force of the degree that protuberance can break away from from recess does not act on pin 14, thereby swing arm 5A, 5B just can not shake from this position and stop to shake.Therefore, the linking arm 6A, the 6B that link with swing arm 5A, 5B, even also stop to shake with crankshaft toothed wheel 4A, 4B that linking arm 6A, 6B link.

In punching machine 1; Function as stationary links in the lever-crankshaft mechanism can be through the end by punch carrier 7 supporting swing arm 5A, 5B; By the axle 12A that is fixedly set in frame 8,12B crankshaft toothed wheel 4A, 4B are carried out the axle supporting, and punch carrier 7 is obtained with frame 8 assembling all-in-one-piece tectosomes.In addition, punch die frame 20 also is assembled into one with punch carrier 7, thereby can have the function as stationary links.Here, punch carrier 7 and punch die frame 20 also can constitute at the A of plunger mechanism portion, B last shared.Above-mentioned punch carrier 7, frame 8 and punch die frame 20 are integrated through becoming tectosome, therefore become the fixed part in the punching machine 1.

In punching machine 1, as stated linking arm 6A has been set up two drift 2Aa, 2Ab, linking arm 6B has been set up two drift 2Ba, 2Bb.Because drift 2Aa, 2ab are through with set bolt 31Aa, 31Ab thereby are fixedly set in drift installation portion 30Aa, 30Ab, wherein drift installation portion 30Aa, 30Ab are arranged on the end with the blade opposition side of drift 2Aa, 2Ab.The relation of drift installation portion 30Ba, 30Bb and set bolt 31Ba, 31Bb and drift 2Ba, 2Bb too.And, wherein block two vast sky 17Aa, 17Ab connection that shotpin 18Aa, 18Ab will be arranged at linking arm 6A because drift installation portion 30Aa, 30Ab are through with card shotpin 18Aa, 18Ab and are ended by card.Likewise, because drift installation portion 30Ba, 30Bb are through with card shotpin 18Ba, 18Bb and are ended by card, wherein 18Ba, 18Bb will be arranged at two vast sky 17Ba, the 17Bb connection of linking arm 6B.

In addition, each drift 2Aa, 2Ab, 2Ba, 2Bb insert respectively among the drift guide portion 16Aa that is arranged on the punch carrier 7,16Ab, 16Ba, the 16Bb, on perforation direction and detaching direction, move thus to be directed freely.Here, to being arranged on linking arm 6A, last slotted hole 17Aa, 17Ab, 17Ba, 17Ba, the 17Bb of 6B, near each crankshaft toothed wheel 4A, the big more mode of 4B tilt angle, the inclination of suitable regulation is set respectively with more.

Linking arm 6A, 6B to the perforation direction near the time; Because the linking arm 6A, the 6B that shake move with the sheet material keeping parallelism on one side on one side, thus the blade tip of sheet material and each drift 2Aa, 2Ab, 2Ba, 2Bb apart from because of the different differences that produce of setting up the position on the length direction of linking arm 6A, 6B.Therefore, each drift 2Aa, 2Ab, 2Ba, 2Bb are approximately equal quantities to the amount of movement of perforation direction, and therefore preferred and this differential pair of setting up the position is answered, and adjusts slotted hole 17Aa, 17Ab, 17Ba, 17Bb angle of inclination.

More than; In punching machine 1; The A of plunger mechanism portion is attached between crankshaft toothed wheel 4A, drive pin 13A, linking arm 6A, pin 15A, the swing arm 5A; And promptly between axle 12A axle center and pin 14 axle center, fix with punch carrier 7 and frame 8 in the center of rotation of crankshaft toothed wheel 4A with the mode that forms stationary links, utilize interlock that such formation can be through crankshaft toothed wheel 4A, linking arm 6A, swing arm 5A to drift 2Aa, the 2Ab driving of boring a hole.Likewise; The B of plunger mechanism portion is attached between crankshaft toothed wheel 4B, drive pin 13B, linking arm 6B, pin 15B, the swing arm 5B; And with the mode that forms stationary links in the center of rotation of crankshaft toothed wheel 4B promptly between axle 12B axle center and pin 14 axle center; Fix with punch carrier 7 and frame 8, utilize interlock that such formation can be through crankshaft toothed wheel 4B, linking arm 6B, swing arm 5B drift 2Ba, the 2Bb driving of boring a hole.

About the lever-crankshaft mechanism of the invention described above, be that example is explained its mechanistic characteristic and thought preferred formation with drift Machinery Ministry A.Here, except that specified otherwise, be suitable for too for the B of plunger mechanism portion.

In the present invention, lever-crankshaft mechanism is so that the mode that the relation of formula (CA+RA)＜(LA+FA) is set up disposes each parts.Here; CA is the spacing distance in axle center with the axle center of axle 12A of drive pin 13A; RA is the spacing distance in axle center of axle center and the pin 15A of drive pin 13A, and LA is the spacing distance in axle center of axle center and the pin 15A of pin 14, and FA is the spacing distance in axle center of axle center and the pin 14 of a 12A.

In above-mentioned configuration, set up through the relation that makes formula LA＞CA, thereby can be more stably to the drift driving of boring a hole.Here, the center of rotation of pin 14 revolute pairs corresponding to lever, crankshaft toothed wheel 4A is that the axle center of axle 12A is corresponding to the revolute pair of bent axle, the axle center of axle 12A and the length that the spacing distance between the pin 14 corresponds respectively to stationary links.

In addition, preferably, adjust the position relation of drive pin 13A corresponding with the rotational angle of crankshaft toothed wheel 4A and swing arm 5A etc., so that linking arm 6A is when being in the sheet face horizontal state with sheet material, swing arm 5A can be in the state vertical with the sheet face.When giving driving force to lever-crankshaft mechanism, through shake the posture that makes swing arm 5A from respect to the plumbness of sheet face near level.At this moment, linking arm 6A is that produce becomes big respectively gradually through the motion of crankshaft toothed wheel 4A and swing arm 5A with driving force sheet face vertical direction.

Therefore; Drive shaking of linking arm 6A through shaking of swing arm 5A; When drift 2Aa, 2Ab are bored a hole driving to sheet material,, therefore can obtain bigger piercing force because swing arm 5A is the posture of approaching as much as possible and sheet face plumbness in the posture of position of readiness.In addition, bigger amount of movement can be obtained, the miniaturization of sheet material punching machine can be made effectively for the perforation direction of drift 2Aa, 2Ab.

In addition; Preferably constitute; When punching machine 1 is in preperforative holding state; Swing arm 5A is positioned at the state vertical with the sheet face of sheet material as much as possible, and the drift 2Aa of linking arm 6A, the attachment point of 2Ab are positioned at level as far as possible, and center of rotation is that axle 12A axle center and drive pin 13A axle center are positioned at level as far as possible in crankshaft toothed wheel 4A.Constitute through this, while linking arm 6A can keep shaking near the posture of level with respect to the sheet face, required spatial volume in the time of therefore can reducing linking arm 6A action, thus make the miniaturization of sheet material punching machine effectively.

In addition, in linking arm 6A, the drift 2Aa through increasing swing arm 5A side is to the amount of movement of perforation direction, can make each drift 2Aa, 2Ab approximate to the amount of movement of perforation direction.Can make commonization of parts of drift self and drift guide portion etc. thus, thereby make the cost degradation of sheet material punching machine effectively.

Next, be example with punching machine 1, utilize Fig. 1～Fig. 5 that the perforation action of sheet material punching machine of the present invention is described aptly.Here, two groups of A of plunger mechanism portion, B that Fig. 3 representes to drive punching machine 1 begin from the position of readiness shown in Fig. 1 (b), after wearing four holes on the sheet material, arrive the state of extreme lower position.In addition, Fig. 4 is from representing only to drive the B of plunger mechanism portion of punching machine 1 with the rightabout viewpoint of Fig. 1 (b), begins after sheet material has worn two holes, to arrive the state of extreme lower position from the position of readiness shown in Fig. 1 (b).In addition, Fig. 5 representes with punching machine 1 a series of perforation action under the situation that wears four holes on the sheet material.Yet to constitute clearly in order making, in each figure, to omit sheet material, in Fig. 5, omit switching mechanism C of portion and the B of punch block mechanism portion etc., in Fig. 3, omit brake cam 50B and retaining spring 51B, in Fig. 4, omit brake cam 50A and retaining spring 51A.

In punching machine 1, the profile of tooth 44A of the follower of being pushed by spring 41A at motor 9 prestarts 44 is in the state with the profile of tooth 43A engagement of initiative part 43 outwardly.If the direction of arrow that initiative part 43 is represented through drive motors 9 via gear 10 in Fig. 2 with solid line begins to rotate; The then direction action of the contact pressure of the profile of tooth 43A of initiative part 43 between the flank of tooth of the profile of tooth 44A of raising and follower 44, thus the engagement of profile of tooth 43A and profile of tooth 44A is reinforced.Afterwards, as long as motor 9 continues to drive to this direction, the engagement of profile of tooth 43A and profile of tooth 44A just can be held.The follower 44 and the binding of initiative part 43 are become reliably, can rotate to the direction of arrow of representing with solid line.

On the other hand; In punching machine 1; If the direction of arrow that initiative part 43 is dotted through drive motors 9 via gear 10 in Fig. 2 begins to rotate; The then direction action of the profile of tooth 43A of initiative part 43 between the flank of tooth of the profile of tooth 44A that leaves follower 44, so the engagement of profile of tooth 43A and profile of tooth 44A is disengaged.And each tooth of the profile of tooth 43A of final initiative part 43 moves on each tooth of profile of tooth 44A of relative follower 44 and crosses.Afterwards, as long as motor 9 continues to drive to this direction, profile of tooth 43A and profile of tooth 44A just can't keep aforesaid engagement.Therefore since follower 44 do not link thereby do not rotate with initiative part 43.

In addition, punching machine 1 is constituted as, and is under the state of position of readiness in the A of plunger mechanism portion side, and the protuberance of retaining spring 51A can embed the recess of brake cam 50A.Because such formation plays a role as the stop mechanism of the lever-crankshaft mechanism of the A of plunger mechanism portion side, thereby thereby swing arm 5A stops to shake and can't shake, and then the crankshaft toothed wheel 4A that links via linking arm 6A and this swing arm 5A also can't shake.Therefore the A of plunger mechanism portion can not cross the counter-force driving of boring a hole by above-mentioned.

Below, the A of plunger mechanism portion that the rotation of above-mentioned initiative part 43 and follower 44 is caused, a series of perforation actions of B describe.

In punching machine 1; If make initiative part 43 rotations and gear 43a begin to rotate to the direction of arrow of representing with solid line through drive motors 9; Then profile of tooth 43A and profile of tooth 44A engagement makes follower 44 begin to rotate to the direction of arrow of representing with solid line, and then makes crankshaft toothed wheel 4A begin to rotate to the direction of arrow of representing with solid line via secondary gear 11A.Simultaneously, because the rotation of initiative part 43 makes gear 43b begin to rotate to the direction of arrow of representing with solid line, and then make crankshaft toothed wheel 4B begin to rotate to the direction of arrow of representing with solid line via secondary gear 11B.

Therefore, in this case, become the state of simultaneously two groups of A of plunger mechanism portion, B being bored a hole and driving, the A of plunger mechanism portion after this, the perforation of B are moved too.Here, in punching machine 1, adjust the angle of inclination of each slotted hole 17Aa, 17Ab, 17Ba, 17Bb etc. respectively, so that each drift 2Aa, 2Ab, 2Ba, 2Bb are fit to the amount of movement of perforation direction and with the position relation of sheet face.

Afterwards, because a series of perforation action of the A of plunger mechanism portion, B is same, therefore the perforation action of lever Quzhou mechanism and drift is described with the A of plunger mechanism portion side, and is omitted explanation the B of plunger mechanism portion side.

In the A of plunger mechanism portion; Rotation through above-mentioned crankshaft toothed wheel 4A; I.e. rotation through representing with arrow 49 among Fig. 5 (a) is carried out rotational motion while make drive pin 13A describe rotary motion trace with the radius of gyration of regulation, is thus connected arm 6A and begins to shake to the perforation direction of drift.At this moment, because the profile of tooth 43A of initiative part 43 fully meshes with the profile of tooth 44A of follower 44, the protuberance that therefore only transmits retaining spring 51A can be from the driving force of the recess disengaging of brake cam 50A.

And then when drive pin 13A rotational motion; Be in the linking arm 6A shown in Fig. 5 (a) of the posture of level with respect to the sheet face of sheet material; The end of the linking arm 6A that links with the drive pin 13A of crankshaft toothed wheel 4A moves to the direction of leaving sheet material thereby following movement is carried out in the rotational motion of drive pin 13A.In addition; When being directed to the other end that links with the swing arm 5A of pin 15A and linking arm 6A; Because the pin 15A side of swing arm 5A moves to the direction of intersecting with the perforation direction for shaking fulcrum with pin 14; Therefore the pin 15A side of linking arm 6A is moved the following movement just as mobile the carrying out to swing arm 5A, moves to the direction near sheet material.Through above-mentioned action, drive pin 13A is through the position of peak, and crankshaft toothed wheel 4A approximately turns to 120 degree from the position of preperforative holding state, thereby becomes the state shown in Fig. 5 (b).

When the posture of linking arm 6A was in the state of Fig. 5 (b) expression, the drift 2Aa of the drift 2Aa that is positioned at swing arm 5A side to than the position of readiness that is positioned at Fig. 5 (a) expression the time slightly moved near the direction of sheet material.In addition, the drift 2Ab that is positioned at crankshaft toothed wheel 4A side is to moving than being positioned at the direction that standby draws drift 2Ab when putting slightly to leave sheet material.When crankshaft toothed wheel 4A from this state further when the direction of arrow 49 expression is rotated because drive pin 13A side and the pin 15A side of linking arm 6A all move to the direction near sheet material, so two drift 2Aa, 2Ab also move to the direction near sheet material.

At this moment; The radius of gyration, the position of axle 12A and the length of swing arm 5A of drive pin 13A through adjustment crankshaft toothed wheel 4A; Just can make as stated linking arm 6A to moment that the direction near sheet material moves with different with pin 15A side in drive pin 13A side, can the perforation of two drift 2Aa, 2Ab be driven thus and set the different moment for.Through boring a hole to sheet material 2Aa, 2Ab by each drift, can bore a hole with littler piercing force thus, thereby reduce driving force and can make the drive source miniaturization in the different moment.

In the A of plunger mechanism portion of punching machine 1, drive two drift 2Aa, 2Ab and bore a hole in the different moment.When the rotation of crankshaft toothed wheel 4A reached about 120 shown in Fig. 5 (b) and spends, at first the blade tip of drift 2Aa arrived punch die hole 3Aa.And when the rotation of crankshaft toothed wheel 4A reached about 150 shown in Fig. 5 (c) and spends, the blade tip of drift 2Ab arrived punch die hole 3Ab.Here, approximately turn at crankshaft toothed wheel 4A under the situation of 150 degree, swing arm 5A and linking arm 6A angulation are approximately 155 degree in the position of pin 15A, and the position that the waving angle of swing arm 5A is set at the state shown in the distance map 5 (a) is approximately 65 degree.

In addition, when the rotation of crankshaft toothed wheel 4A arrives the state that surpasses 170 degree shown in Fig. 5 (d), finish wearing to two holes that sheet material carries out by two drift 2Aa, 2Ab.Afterwards; Along with the rotation of crankshaft toothed wheel 4A, after this pin 15A side arrived the position of minimum point, the moving direction of linking arm 6A was to the direction conversion of leaving sheet material; Then after two drift 2Aa, 2Ab arrive the position of minimum point, move with the mode of changing moving direction.

In a series of perforation action of the above-mentioned A of plunger mechanism portion, two drift 2Aa, 2Ab move, and slotted hole 17Aa, the 17Ab that can end them through length or the card of each drift 2Aa, 2Ab has or not to tilt or the angle of inclination difference is adjusted.For example; Punching machine 1 shown in Fig. 1 (b); Through slotted hole 17Aa, 17Ab are provided with inclination, and make the angle of inclination different, thereby can be adjusted into the amount of movement of each drift 2Aa, 2Ab basic identical so that increase slotted hole 17Aa, 17Ab inclination near crankshaft toothed wheel 4A side.Thus, can make commonization of parts such as drift guide portion 16Aa, 16Ab of each drift 2Aa, 2Ab.

Therefore; Punching machine 1 is when in the C of switching mechanism portion, through driving the side as the motor 9 of drive source, when the direction of arrow that initiative part 43 is represented with solid line in Fig. 2 is rotated; Because these initiative part 43 rotations and follower 44 link with initiative part 43 and rotate simultaneously; Therefore the lever-crankshaft mechanism of the A of plunger mechanism portion, B is driven simultaneously, thereby to four drift 2Aa, 2Ab, 2Ba, the 2Bb driving of boring a hole, can on sheet material, wear four holes thus.Perhaps; Switching is as the driving direction of the motor 9 of drive source; The opposing party through drive motors 9 makes initiative part 43 when the direction of arrow that dots is rotated, and then follower 44 is not connected with initiative part 43 thereby does not rotate, so the lever-crankshaft mechanism of the B of plunger mechanism portion of single driving and the central and east 43 bindings; Just can therefore can on sheet material, wear two holes to two drift 2Ba, the 2Bb driving of boring a hole.

More than; Can obtain to have the sheet material punching machine of handoff functionality according to switching mechanism of the present invention portion; Wherein handoff functionality is to select to drive two groups of A of plunger mechanism portion, B through switching the drive source drives direction; The drift that can possess separately the A of plunger mechanism portion, B is simultaneously bored a hole and is driven and on sheet material, bore a hole, the function that also can bore a hole and drive and on sheet material, bore a hole the drift that the B of plunger mechanism portion possesses.In addition; According to the plunger mechanism portion that has been suitable for lever-crankshaft of the present invention mechanism; Because can make the perforation driving mechanism of drift oversimplifies; Reduce the conversion loss of driving force and the miniaturization of consequent drive source, therefore can obtain at superior sheet material punching machines in aspect such as small-sized property, energy saving, low cost property.

Therefore; Can obtain to have the sheet material punching machine of a conduct example of the present invention of following handoff functionality; This handoff functionality is meant; For example be two holes and four holes such as 80mm, and respectively possess two and add up to four drifts to make them corresponding in that the A of plunger mechanism portion, B are last, driving in the time of through the selection plunger mechanism A of portion, B and on sheet material, wear four holes with punch position on the sheet material in order to switch the distance between borehole that mainly circle uses morely in Europe; Perhaps the single driving of the B of plunger mechanism portion and on sheet material, wear two holes is the function in two holes or four holes thereby can select the perforation number to sheet material.

Claims (6)

1. a sheet material punching machine is characterized in that,

Said sheet material punching machine possesses: drive source, two groups of A of plunger mechanism portion, B and switching mechanism portions,

The said plunger mechanism A of portion, B possess respectively: through drift of on sheet material, boring a hole and the lever-crankshaft mechanism that this drift is bored a hole and driven with the engagement of punch die hole,

Said switching mechanism portion has:

Initiative part, itself and said drive source drives direction are rotated to twocouese accordingly;

Follower, through linking with said initiative part and rotate to a direction,

Said follower links with the lever-crankshaft mechanism that drives the said plunger mechanism A of portion, and said initiative part links with the lever-crankshaft mechanism that drives the said plunger mechanism B of portion,

Through switching said drive source drives direction, switching is to drive when carrying out the said plunger mechanism A of portion, B, still carries out the single driving of the said plunger mechanism B of portion.

2. sheet material punching machine according to claim 1 is characterized in that,

Said initiative part possesses and is configured to circular a plurality of teeth, and said follower possesses a plurality of teeth corresponding with the odontoid of said initiative part,

Through being meshing with each other of tooth that said initiative part and said follower possessed, said follower and said initiative part are linked and rotating.

3. sheet material punching machine according to claim 2 is characterized in that,

The tooth of said initiative part has: on the rotation direction that said initiative part and said follower link as the preceding flank of tooth of front side with as the back flank of tooth of rear side,

Comprise said before the flank of tooth the plane with the vertical inclination angle that the plane became of the center of rotation of said initiative part be formed 70～110 the degree.

4. according to any described sheet material punching machine in the claim 1 to 3, it is characterized in that,

Said lever-crankshaft mechanism possesses:

The crankshaft component that links and carry out rotational motion with said switching mechanism portion;

The lever part that one end can joltily be supported;

Set up drift and link the attaching parts of said crankshaft component and said lever part;

Support the fixed part of a said end of turning cylinder and the said lever part of said crankshaft component,

Rotational motion through said crankshaft component is shaken said attaching parts to the perforation direction of drift, thereby to the driving of boring a hole of said drift.

5. sheet material punching machine according to claim 5 is characterized in that,

Possess stop mechanism portion in the said lever-crankshaft mechanism,

Said stop mechanism portion suppresses the rotational motion of said crankshaft component, perhaps suppresses shaking of said lever part.

6. according to any described sheet material punching machine in the claim 1 to 5, it is characterized in that,

The said plunger mechanism A of portion, B possess two drifts respectively,

The drift of the said plunger mechanism A of portion is configured in both end sides, drives in the time of through the said plunger mechanism A of portion, B and on sheet material, wears four holes, on sheet material, wears two holes through the one-sided driving of the said plunger mechanism B of portion.

Images