CN102039614B - Sheet perforating device - Google Patents

Abstract

The present invention provides a sheet perforating device which has a switching function between two-hole and three-hole, wherein the function is commonly used in North America. The sheet perforating device is provided with the following components: a driving source; two groups of punch mechanism parts, which are respectively provided with a punch that perforates on the sheet through engaging with a punch die hole, and a lever crankshaft mechanism which performs perforating driving to the punch; and a switching mechanism part which is provided with the following elements: a driving part which rotates bidirectionally correspondingly with a driving direction of the driving source, a first driven part which is connected with the driving part and rotates in one direction through the driving of one side of the driving source, and a second driven part which is connected with the driving part and rotates in another direction through the driving of the other side of the driving source. The sheet perforating device has a switching function that a lever crankshaft mechanism of the punch mechanism part connected with the first driven part or the other lever crankshaft mechanism of the punch mechanism part connected with the second driven part can be selected for perforating on the sheet through switching the driving direction of the driving source.

Description

Sheet material punching device

Technical field

The present invention relates to such as on the main body of duplicator, printer, facsimile machine and their image processing systems such as equipment complex, or the punching machine that carries at printing machine, specifically be exactly a kind of function that the perforation number of boring a hole at the various sheet materials with lamellar morphology is switched that has, such as the sheet material punching device of the handoff functionality in two holes and three holes etc.

Background technology

, can switch in the sheet material punching device 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 to bore a hole at sheet material more.

Patent documentation 1 disclosed drift driving mechanism constitutes, can set eccentric cam at the turning cylinder that axially moves with perforation direction quadrature in conduct, 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 by the turning cylinder that switches, the eccentric cam that just can make desired group is pressed 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, setting cam surface or cam path as the sliding bar that can move in the direction with perforation direction quadrature, wherein this cam surface or cam path are that cam curve is divided into two groups and be positioned the top of drift, by switching the moving direction of sliding bar, just can make the cam surface of desired group or cam path press the head of drift to the perforation direction, thus can be to the drift that is positioned at this cam surface or the cam path below driving of boring a hole.

In addition, patent documentation 3 disclosed drift driving mechanisms constitute, on the sliding panel that conduct can be moved in the direction with perforation direction quadrature, cam curve is divided into two groups and sets cam path, by switching the moving direction of sliding panel, the cam path that just can make desired group is pressed drift with its link to the perforation direction, thus can be to the drift that links with this cam path driving of boring a hole.

In addition, patent documentation 4 disclosed drift driving mechanisms constitute, to have the fan-shaped part with grooved cam that is linking drift, with with can with the corresponding mode of shaking of moving direction of the mobile sliding panel of the direction of perforation direction quadrature, cam curve is divided into two groups sets, by 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 with the grooved cam link of this fan-shaped part.

Its Patent Literature 3 disclosed drift driving mechanisms have the miniaturization and the cost degradation that make sheet material punching device and are relatively easy to advantage.Yet, viewpoint from the driving force transmission, after transmitting to the direction parallel with the sheet face by sliding panel from the driving force of drive source, be transformed into the direction vertical with the sheet face as the perforation direction of drift by cam surface or cam path again, therefore follow and to produce therewith larger driving force loss.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 sheet material punching device miniaturization and cost degradation and energy-saving.

Therefore, the applicant has proposed to use in patent documentation 5 and has driven reciprocating type sheet material punching device 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 consist of lever-crankshaft mechanism, by 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 by this formation, can realize in addition the simplification of mechanical realization, can make the further miniaturization of sheet material punching device, cost degradation and energy-saving.

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 device, 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 sheet material punching device.Need only and the corresponding outfit of the perforation number drift that adopts in actual applications.Yet, such as mainly in European scope, using 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 adopts can't be ignored, therefore expectation has the sheet material punching device of the handoff functionality of perforation number.

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

Summary of the invention

The object of the present invention is to provide a kind of sheet material punching device, it has possessed in patent documentation 5 use that the proposes drift driving mechanism of lever-crankshaft mechanism, and the sheet material punching device with simple structure formation with the handoff functionality that switches in the perforation number that wears on the sheet material, be that two holes of 70mm etc. or distance between borehole are three holes of 108mm etc. such as the distance between borehole that can select aptly mainly to use morely at the North America circle, at the enterprising eleven punch 11 of sheet material, the distance between borehole of perhaps selecting aptly mainly to use morely at the Europe circle is two holes or four holes of 80mm etc., at the enterprising eleven punch 11 of sheet material.

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

Namely, the present invention is a kind of sheet material punching device, it is characterized in that, possess: drive source, two groups the A of plunger mechanism section and the B of plunger mechanism section and switching mechanism section, the above-mentioned plunger mechanism A of section, B possess respectively: by the drift of boring a hole at sheet material with the engagement of punch die hole and the lever-crankshaft mechanism that this drift is bored a hole and driven, above-mentioned switching mechanism section has: initiative part, and the driving direction of itself and above-mentioned drive source rotates to twocouese accordingly; The first follower, its side by above-mentioned drive source drives, and rotates with above-mentioned initiative part link and to a direction; The second follower, its the opposing party by above-mentioned drive source drives, rotate with above-mentioned initiative part link and to a direction, above-mentioned the first follower links with the lever-crankshaft mechanism that drives the above-mentioned plunger mechanism A of section, above-mentioned the second follower links with the lever-crankshaft mechanism that drives the above-mentioned plunger mechanism B of section, by switching the driving direction of above-mentioned drive source, switch the above-mentioned plunger mechanism A of section of driving or drive the above-mentioned plunger mechanism B of section.

In the present invention, preferably can be suitable for following machinery consists of: 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, the tooth that possesses by above-mentioned initiative part and above-mentioned follower intermeshing links above-mentioned follower and above-mentioned initiative part and rotates.

In addition, preferred applicable following machinery consists of in above-mentioned switching mechanism section: the tooth of above-mentioned initiative part has: as the front flank of tooth of front side with as the rear flank of tooth of rear side, the plane that comprises the above-mentioned front flank of tooth is formed 70～110 with the inclination angle that becomes with the vertical plane of the center of rotation of above-mentioned initiative part and spends on the rotation direction of above-mentioned initiative part and the link of above-mentioned follower.

In addition, preferred applicable following machinery consists of in the above-mentioned plunger mechanism A of section, B: above-mentioned lever-crankshaft mechanism possesses: with above-mentioned switching mechanism section's link 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 the turning cylinder of above-mentioned crankshaft component and above-mentioned lever part, described attaching parts are shaken to the perforation direction of drift by the rotational motion of described crankshaft component, thereby to the driving of boring a hole of described drift.

In addition, preferred applicable following machinery consists of, and possesses stop mechanism section in the above-mentioned lever-crankshaft mechanism, and above-mentioned stop mechanism section suppresses the rotational motion of above-mentioned crankshaft component, perhaps suppresses shaking of above-mentioned lever part.

In addition, in the present invention, the side among the above-mentioned plunger mechanism A of section, the B possesses two drifts, and the opposing party possesses three drifts, wear two holes by the driving of the side among the above-mentioned plunger mechanism A of section, the B at sheet material, wear three holes by the opposing party's driving at sheet material.

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

Sheet material punching device of the present invention is by switching the driving direction of drive source, and can be to the A of the plunger mechanism section driving of boring a hole, and can be to the B of the plunger mechanism section driving of boring a hole.Therefore, for example corresponding with the position in two holes of boring a hole at sheet material or three holes, possess drift at the A of plunger mechanism section, B, thereby can wear by the plunger mechanism section that drives a side two holes, and wear three holes by the plunger mechanism section that drives the opposing party.This for the situation in two holes or four holes too.In addition, the applicable perforation driving mechanism that is consisted of by simple mechanical realization of sheet material punching device of the present invention, therefore the lever-crankshaft mechanism that this perforation driving mechanism has used the driving force loss to lack than the existing mechanism that proposes in patent documentation 5 has concurrently and makes the more effective advantage of miniaturization and cost degradation and energy-saving.

Description of drawings

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

Fig. 2 is the top view of the formation of the C of switching mechanism section shown in the presentation graphs 1 (a) enlargedly.

Fig. 3 represents to begin to drive the front view that the A of plunger mechanism section comes to have worn at sheet material the state in two holes from the position of readiness of Fig. 1 (b).

Fig. 4 is from representing to begin to drive the B of plunger mechanism section and the front view that worn the state in three holes at sheet material from the position of readiness shown in Fig. 1 (b) with the rightabout viewpoint pull-up of Fig. 1 (b).

Fig. 5 is that the mode of the clear and definite plunger mechanism A of section represents to use sheet material punching device shown in Figure 1 by omitting the switching mechanism C of section and the B of plunger mechanism section etc. in the situation that sheet material wears the front view of two a series of perforation actions in hole.

Fig. 6 is the top view of an example of the switching mechanism section that formed by the structure different from Fig. 2 of expression.

Description of reference numerals: 1... punching machine; A, B... plunger mechanism section; C... switching mechanism section; 2Aa, 2Ab, 2Ba, 2Bb, 2Bc... drift; 3Aa, 3Ab, 3Ba, 3Bb, 3Bc... 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, 16Bc... drift guide portion; 17Aa, 17Ab, 17Ba, 17Bb, 17Bc... slotted hole; 18Aa, 18Ab, 18Ba, 18Bb, 18Bc... lock pin; 19A, 19B... axle; 20... die punching frame; 30Aa, 30Ab, 30Ba, 30Bb, 30Bc... drift installation portion; 31Aa, 31Ab, 31Ba, 31Bb, 31Bc... set bolt; 41A, 41B... spring; 42... axle; 43... initiative part; 43a, 43b... gear; 43A, 43B... profile of tooth; The flank of tooth before 43Aa, the 43Bb...; The flank of tooth behind 43Ab, the 43Bb...; 44A... the first follower; 44Aa... gear; 44B... the second follower; 44Ba... gear; 45A, 45B... profile of tooth; 45Aa, 45Ab, 45Ba, the 45Bb... flank of tooth; 49... arrow; 50A, 50B... brake cam; 51A, 51B... retaining spring; 108... frame; 109... motor; 110,111,112... gear; 113... axle; 141A, 141B... spring; 142... axle; 143... initiative part; 143A, 143B... profile of tooth; 144A... the first follower; 144Aa... gear; 144B... the second follower; 144Ba... gear; 145A, 145B... profile of tooth.

The specific embodiment

Sheet material punching device of the present invention possesses as basic comprising: drive source, two groups of A of plunger mechanism section, B and switching mechanism section, the above-mentioned plunger mechanism A of section, B possess respectively: by coming the more than one drift of boring a hole at sheet material 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 device of the present invention of such basic comprising is, mechanical structure by switching mechanism described later section, to drive the above-mentioned plunger mechanism A of section or drive the above-mentioned plunger mechanism B of section by selecting and switch the so simple control of driving direction of drive source, just can selecting and switch only.

Switching mechanism of the present invention section has: initiative part, and it is positioned at the distolateral of the A of plunger mechanism section, B, and links with drive source and rotate to twocouese accordingly with the switching of the driving direction of drive source; The first follower, its side by above-mentioned drive source drives, and rotates with above-mentioned initiative part link and to a direction; The second follower, its opposing party by above-mentioned drive source drives, and rotates with above-mentioned initiative part link and to a direction, links the plunger mechanism A of section at the first follower, links the plunger mechanism B of section at the second follower.This machinery consists of particular importance and is characterised in that, and is corresponding with the switching of the driving direction of drive source, carries out that the first follower links the maintenance of initiative part and the second follower links the releasing of initiative part.

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

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

The mechanical type of the first and second followers constitutes in the present invention: have when self and initiative part link, can accept the rotational motion of initiative part as the rotational motion of self, thereby rotate to a direction.In addition, the first follower has the formation that can drive the A of plunger mechanism section that links directly or indirectly, and the second follower has the formation that can drive the B of plunger mechanism section that links directly or indirectly.Therefore, the first and second followers constitute: such as and initiative part between use connect mechanism described later etc., and accept the rotational motion of the initiative part link as the rotational motion of self, owing to have the mechanical part such as gear thereby the rotational motion accepted can be delivered to plunger mechanism section with a side that self links as rotational motion.

In consisting of the first and second follower processes of rotating to an above-mentioned direction, for example, can use engagement system or the friction of being undertaken by gear or the one-way clutch mechanism such as crimping mode of having utilized magnetic, with the ratchet mechanism with mode that the gear mode of the brakes such as pawl and rotating direction that retainer internally wraps axle give directive property etc., used the connect mechanism of one-way clutch parts etc. of the market sale of said mechanism, and can be with their outlet side as follower, with input side as initiative part.

In addition, the key character of above-mentioned the first and second followers is, is corresponding with the driving direction of drive source, links and in the situation of rotating at a side follower and initiative part, and the opposing party's follower does not link with initiative part and the formation of not rotating.Namely, drive in the situation that the first follower and initiative part is linked and rotate to a direction the side by drive source, the second follower does not rotate, drive in the situation that the second drive division and initiative part is linked and rotate to a direction formation that the first follower does not rotate the opposing party by drive source.

At this, the formation of " rotating with the initiative part link and to a direction " refers to, when the driving by drive source makes initiative part rotate to the either direction in the twocouese, although with the linking to make to a side rotation and self rotate to a direction of initiative part, but do not link therefore with the rotation to the opposing party of initiative part and self not rotate, even perhaps be in the state that links with initiative part but owing to removed with the link of initiative part thereby self do not rotate.

In the process that consists of the special connection relationship of such initiative part and two followers, preferred following mechanical structure, 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 by initiative part and follower links follower and initiative part.Utilize the mechanical type engaging structure of such profile of tooth, with use the above-mentioned one-way clutch mechanism of utilizing magnetic and the gear mode with brakes such as pawls or internally wrap axle and give the structure of detent mechanism of the mode of directive property and compare, have mechanical structure is oversimplified and easily miniaturization and lightweight, can carry out expeditiously the many merits such as driving force transmission.

In addition, in the structure that initiative part and two followers link, utilized in use in the situation of engaging structure of above-mentioned profile of tooth, between the flank of tooth that the engagement by profile of tooth contacts, carried out from driving wheel to the driven pulley transmission of drive force.At this moment, the above-mentioned inclination angle that more reduces the flank of tooth that meshes then transmission efficiency more reduces.Therefore, preferably, the tooth that uses as the profile of tooth of above-mentioned initiative part is formed with: as the front flank of tooth of front side with as the rear flank of tooth of rear side, and form 70～110 by the plane that comprises the front flank of tooth with the inclination angle that becomes with the vertical plane of the center of rotation of initiative part and spend on the rotation direction that initiative part and follower link.Particularly, in the time of near the inclination angle is 90 degree, be subjected to hardly the impact of the contact friction of tooth each other, so transmission of drive force expeditiously.

Yet, if this inclination angle is set as less than 70 degree, because the impact 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, thereby make the transmission efficiency of driving force sharply deteriorated.According to circumstances different, the engagement of profile of tooth becomes unstable so follower does not rotate sometimes.In addition, surpass 110 degree if set this inclination angle, then only have the gap with the angular differences of 90 degree, therefore easily make because the initial actuating of the rotating drive that the engagement of profile of tooth causes becomes unstable, in addition, easily generation is damaged because the crown attenuation of each tooth causes the not enough therefore crown of mechanical strength.

Utilize the formation of above-mentioned profile of tooth by use, in the situation that want follower and initiative part to be linked and rotate, can more stably keep initiative part that the engagement of profile of tooth produces and the connecting state of follower.In addition, owing to can form aptly the inclination of the rear flank of tooth of the tooth of the profile of tooth that consists of initiative part, therefore in the situation that follower do not link with initiative part and do not want to rotate, because the tooth of initiative part side moves on the tooth of follower side and crosses, and therefore can realize more reliably the non-linking status of consequent initiative part and follower.All set up in the relation of this any one and initiative part in the first and second followers.

Because sheet material punching device of the present invention has above-mentioned switching mechanism section, therefore link by lever-crankshaft mechanism and the first follower with the A of plunger mechanism section, thereby the rotation to a direction by this first follower drives the A of plunger mechanism section, link by lever-crankshaft mechanism and the second follower with the B of plunger mechanism section, thereby drive the B of plunger mechanism section by the rotation to a direction of this second follower.

For example, at the above-mentioned A of plunger mechanism section, among the B, possess two drifts at the A of plunger mechanism section, so that its hole site with two holes of boring a hole at sheet material is corresponding and distance between borehole is 70mm etc., and possess three drifts at the B of plunger mechanism section, so that its hole site with three holes is corresponding and distance between borehole is 108mm etc., therefore can obtain to have the sheet material punching device of a conduct example of the present invention of handoff functionality, wherein handoff functionality refers to, can be chosen in the perforation number of boring a hole on the sheet material is the function that wears two holes or three holes of using morely in the scope of North America.In this case, can wear two holes by driving the plunger mechanism A of section side, and can wear three holes by driving the plunger mechanism B of section side.At this moment, be listed as by all drifts are consisted of drift in the straight line alignment, thereby can be configured in the hole row that sheet material is bored a hole at straight line.

Above-mentioned handoff functionality is applicable to the situation in two holes and four holes too.For example, at the above-mentioned A of plunger mechanism section, among the B, possess two drifts at the A of plunger mechanism section, so that its hole site with two holes of boring a hole at sheet material is corresponding and distance between borehole is 80mm etc., and possess four drifts at the B of plunger mechanism section, so that its hole site with four holes is corresponding and distance between borehole is 80mm etc., therefore can obtain to have the sheet material punching device of a conduct example of the present invention of handoff functionality, wherein to refer to be chosen in the perforation number of boring a hole on the sheet material be the function that wears two holes or four holes of using morely in the scope of North America to handoff functionality.At this moment, two holes can be worn by driving the plunger mechanism A of section side, and four holes can be worn by driving the plunger mechanism B of section side.

In addition, sheet material punching device of the present invention, as the mechanical type mechanism of in the A of plunger mechanism section, B, drift being bored a hole and driving, applicable lever-crankshaft mechanism.Therefore can effectively realize following functions with simple mechanical structure: by crank mechanism the driving force of drive source is passed to drift efficiently via switching mechanism section, by lever structure while amplify driving force with straight line to the drift driving of boring a hole, therefore can realize miniaturization, cost degradation and the energy-saving of plunger mechanism section etc.

As mentioned above, sheet material punching device of the present invention can be as the reciprocation type sheet material punching device of changeable perforation number to sheet material, is particularly suitable for being equipped on the office equipment such as the duplicator that uses copy paper etc. or its after-treatment device.In addition, can be the various sheet materials with lamellar morphology as the sheet material of the perforation object of sheet material punching device of the present invention, for example, also can be applicable to the material that is consisted of 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 section, B.

As the lever-crankshaft mechanism that uses in the present invention, can be suitable for following machinery and consist of, possess: crankshaft component, rotational motion is carried out in its switching mechanism section link with the invention described above; Lever part, the one 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 by 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 consist of hinge by revolute pair, are the mechanical type mechanisms that the connecting rod of having fixed length minimum in above-mentioned connecting rod forms the connecting rod of revolute pair.That is, this lever-crankshaft mechanism refers to, constitutes consisting of 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 of length minimum can move.

In addition, the connecting rod with rotational motion is called bent axle usually, 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 connecting rod of length minimum.In addition, above-mentioned revolute pair refers to, 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 above-mentioned fixed part.

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

When shaking attaching parts, the drift of setting up thereon 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 larger conversion, so the loss of driving force can be limited in Min..In addition, can make the drive source miniaturization because therefore the amount of driving force loss reduces, put on the bore a hole load reduction of the driving mechanism section that drives of drift thereby make.Therefore the drift number of setting up on attaching parts is more much more effective, for example is applicable to wear two holes, three holes, four holes, wears more the sheet material punching device of porous and more can bring into play higher action effect.

In addition, by the attaching parts that consist of 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 by the rotational motion of crankshaft component between crankshaft component and lever part.At this, the perforation direction of drift refers to, the direction vertical with the sheet face of sheet material, corresponding to as the vertical in fact direction of the sheet material mounting surface of the above-mentioned fixed part of stationary links.

Therefore, by 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 the perforation direction to drift.Here, in the situation that attaching parts are set up drift, can be at drift the formation that spindle unit etc. directly is attached to attaching parts to be set, for example, can also be between drift and attaching parts, to arrange, set up the formation that drift locks unit etc.

In addition, the method that the lever-crankshaft mechanism that possesses according to above-mentioned switching mechanism section and the A of each plunger mechanism section, B links might make the position of readiness of drift after driving perforation become unstable.For example, in the situation for the switching mechanism section that used initiative part that the engagement that utilizes above-mentioned profile of tooth consists of 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 (hereinafter referred to as crossing counter-force) of follower.At this moment, also not necessarily rotate even counter-force is crossed in the profile of tooth effect of follower, but hypothesis has been in the situation that 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.

In such situation that the drift vibration might occur inadvertently, when the crankshaft component that forms lever-crankshaft mechanism or formation lever part, preferably to crankshaft component or lever part arrange vibration proof mechanism (below, be called stop mechanism), suppress the unnecessary vibration of crankshaft component or lever part.For example, can be suitable for following stop mechanism, namely, utilize the elastic force of spring and the pressing force of cam etc., side at desired area arranges protuberance, opposite side arranges the recess corresponding with the protuberance shape, thereby keeps protuberance to be embedded in the state of recess, links the driving force of transmitting by follower and initiative part and can remove above-mentioned embedding state.

Next, enumerating the inventor thinks and sheet material punching device of the present invention is described in detail preferred concrete formation.

Fig. 1 is the sheet punching machine 1 with two groups of A of plunger mechanism section, B (below, be called punching machine 1) as an example of the present invention.Fig. 1 (a) is the holding state that represents punching machine 1 from the viewpoint of top, and Fig. 1 (b) is the holding state that represents 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 section shown in Fig. 1 (a).In addition, Fig. 2 (b), Fig. 2 (c) are near the enlarged drawings of profile of tooth 43A, 43B that initiative part possesses.Here, punching machine 1 is an example, can be chosen in aptly which the side configuration plunger mechanism A of section, B and first and second follower etc.

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

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

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

The C of switching mechanism section is that to decide according to the switching as the driving direction of the motor 9 of drive source be the mechanical type mechanism that drives the plunger mechanism A of section or drive the plunger mechanism B of section.The C of switching mechanism section of punching machine 1 has as basic comprising: initiative part 43 and first, second follower 44A, 44B, wherein initiative part 43 is by the 42 rotatable earth's axis supportings of an axle, wherein the two ends of this axle 42 are fixedly installed on be used to the frame 8 that is fixedly installed as the motor 9 of drive source, and to be configured in the sheet material throughput direction be on the vertical direction of linking arm 6A, the 6B of the A of plunger mechanism section, B.In the present invention by adopting the formation as described above on initiative part 43 and first, second follower 44A, 44B the is provided in axle 42 vertical with the A of plunger mechanism section, B, thus can be easily with the C of switching mechanism section miniaturization on the sheet width direction.

Be provided in the initiative part 43 on the axle 42, by with the turning cylinder that is fixedly installed on motor 9 on gear 10 two gear 43a, 43b linking consist of.Gear 43a has to the outstanding profile of tooth 43A of axle 42 directions and with linking arm 6A and sets abreast, and can be take axle 42 as center of rotation and the switching of the driving direction of motor 9 to rotating to twocouese.Similarly, gear 43b has to the outstanding profile of tooth 43B of axle 42 directions and with linking arm 6B and sets abreast, and can be take axle 42 as center of rotation and the switching of the driving direction of motor 9 to rotating to twocouese.And the gear 43a, the 43b that consist of initiative part 43 can link with the first and second follower 44A, 44B side on the position of each profile of tooth 43A, 43B.

Be provided in the first follower 44A on the axle 42, consist of by having to the outstanding profile of tooth 45A of axle 42 directions and with gear 44Aa that linking arm 6A sets abreast.Similarly, the second follower 44B consists of by having to the outstanding profile of tooth 45B of axle 42 directions and with gear 44Ba that linking arm 6B sets abreast.And, the first and second follower 44A, 44B mode opposite the setting on axle 42 directions being sandwiched by the initiative part 43 that two gear 43a, 43b consist of, and press aptly respectively the sidepiece of driving shaft 43 by the elastic force of spring 41A, 41B.

In addition, in the C of switching mechanism section, link the gear 44Ba link that the secondary gear 11B that sets abreast by the supporting of axle 19B axle and with linking arm 6B and the second follower 44B possess by axle 19A axle supporting and with linking arm 6A the secondary gear 11A that sets abreast and the gear 44Aa that the first follower 44A possesses.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 link that set abreast with linking arm 6B.

Therefore, as the driving force of the motor 9 of drive source, at first be delivered to two gear 43a, 43b that consist of initiative part 43 via gear 10.Yet in the situation that the first follower 44A and initiative part 43 link, be delivered to the first follower 44A via a side's who consists of initiative part 43 gear 43a, and then be delivered to the crankshaft toothed wheel 4A of the A of plunger mechanism section side via secondary gear 11A.Perhaps in the situation that the second follower 44B and initiative part 43 links, be delivered to the second follower 44B via the opposing party's who consists of initiative part 43 gear 43b, and then transmit to the crankshaft toothed wheel 4B of the B of plunger mechanism section side via secondary gear 11B.

The link of above-mentioned initiative part 43 and the first follower 44A consist of relate to, to the profile of tooth 43A of the initiative part 43 of the side-prominent configuration of the first follower 44A, and have equal formation to the profile of tooth 45A of the first follower 44A of initiative part 43 side-prominent configurations, and mutually centered by the axle 42 that connects self, possess 8 teeth circularly.In addition, the link formation of above-mentioned initiative part 43 and the second follower 44B relates to, profile of tooth 43B to the initiative part 43 of the side-prominent configuration of the second follower 44B, and also have equal formation to the profile of tooth 45B of the second follower 44B of initiative part 43 side-prominent configurations, mutually centered by the axle 42 that connects self, possess 8 teeth circularly.

The below describes profile of tooth 43A, and shown in Fig. 2 (b), each tooth of profile of tooth 43A has the odontoid that the rear flank of tooth 43Ab that the rotation direction at initiative part 43 is become the front flank of tooth 43Aa of front side and becomes rear side forms main face.In addition, in each tooth of profile of tooth 43A, the inclination angle towards crown that main two sides forms, namely, comprise front flank of tooth 43Aa the plane, with as the plane of the turning cylinder quadrature of the center of rotation of initiative part 43 that is the inclination angle that becomes with the plane of axle 42 quadratures, approximately form 90 degree, the inclination angle that similarly becomes with the plane that comprises rear flank of tooth 43Ab approximately forms 60 degree.

On the other hand, each profile of tooth 45A, 45B of the first and second follower 44A, 44B as mentioned above, possess 8 teeth in the opposed mode of each profile of tooth 43A, 43B with initiative part 43 circularly centered by axle 42.Next profile of tooth 45A is described, shown in Fig. 2 (b), in each tooth of profile of tooth 45A, towards the inclination angle that the main two sides of crown becomes, has the odontoid corresponding with each odontoid of the profile of tooth 43A of initiative part 43.Namely, in each tooth of the profile of tooth 45A of the first follower 44A, the inclination angle that the flank of tooth 45Aa corresponding with the front flank of tooth 43Aa of each tooth of the profile of tooth 43A of initiative part 43 becomes approximately forms 90 degree, and similarly the inclination angle that becomes of the flank of tooth 45Ab corresponding with rear flank of tooth 43Ab approximately forms 60 degree.

In the inactive state of Fig. 2 (a) expression, each profile of tooth 45A, 45B of first and second driven pulley 44As, the 44B relative with each profile of tooth 43A, the 43B of initiative part 43 see it is to be in the state that meshes by the elastic force of spring 41A, 41B from appearance.Afterwards, if by drive motors 9 initiative part 43 is rotated to the direction of arrow that represents with solid line, then each tooth of the profile of tooth 43A of initiative part 43 further approaches each tooth of the profile of tooth 45A of the first corresponding follower 44A, and move in the mode that increases the crimp force between the flank of tooth, therefore can keep the engagement between profile of tooth 43A and profile of tooth 45A, thereby the first follower 44A is rotated.On the other hand, because each tooth of the profile of tooth 43B of initiative part 43 moves in the mode of each tooth of the profile of tooth 45B that leaves the second corresponding follower 44B, therefore final because each tooth of profile of tooth 43B moves on each tooth of corresponding profile of tooth 45B and crosses, thereby therefore the engagement that can not keep profile of tooth 43B and profile of tooth 45B can not make the second follower 44B rotate.

In addition, if the driving direction by switch motor 9, initiative part 43 is rotated to the direction of arrow that dots, then each tooth of the profile of tooth 43B of initiative part 43 further approaches each tooth of the profile of tooth 45B of the second corresponding follower 44B, and move in the mode that increases the crimp force between the flank of tooth, therefore can keep the engagement between profile of tooth 43B and profile of tooth 45B, thereby the second follower 44B is rotated.On the other hand, because each tooth of the profile of tooth 43A of initiative part 43 moves in the mode of each tooth of the profile of tooth 45A that leaves the first corresponding follower 44A, therefore final because each tooth of profile of tooth 43A moves on each tooth of profile of tooth 45A and crosses, therefore the engagement that therefore can not keep profile of tooth 43A and profile of tooth 45A can not make the second follower 44A rotate.

Therefore, punching machine 1 is by switching the driving direction as the motor 9 of drive source, and can select, switch is to drive the A of plunger mechanism section that links with the first follower 44A, perhaps drives the B of plunger mechanism section that links with the second follower 44B.And the driving of the A of plunger mechanism section is to drive by two drift 2Aa, 2Ab are bored a hole they and punch die hole 3Aa, 3Ab are meshed, thereby can wear two holes at sheet material.In addition, the driving of the B of plunger mechanism section is to drive by three drift 2Ba, 2Bb, 2Bc are bored a hole to make they and punch die hole 3Ba, 3Bb, 3Bc mesh, thereby can wear three holes at sheet material.That is, punching machine 1 has the driving direction by the switching drive source, and will select, switch to the perforation number of sheet material the handoff functionality in two holes or three holes.

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

The switching mechanism section that Fig. 6 represents has: axle 142, its two end axles are supported on the frame 108 that is fixedly installed motor 109, become the axle of the initiative part 143 that can consist of rotationally to twocouese; With the first follower 144A and the second follower 144B take this axle 142 as center of rotation.

Consist of the axle 142 of initiative part 143, on axle 142 directions, have profile of tooth 143A in the first follower 144A side, have profile of tooth 143B in the second follower 144B side, each profile of tooth 143A, 143B and axle 142 form as one.And initiative part 143 and motor 109 link with first and second follower 144A, 144B.Particularly, initiative part 143 is to link with the gear 110 that is fixedly installed on motor shaft with the gear 112 that is fixedly installed on axle 142 via the gear 111 by the supporting of axle 113 axles with respect to motor 109, and link with the first and second driven pulley 144A, 144B respectively by profile of tooth 143A, 143B, thereby can be take axle 142 as center of rotation, corresponding with the switching of motor 109 driving directions, can rotate to twocouese.In addition, the gear 112 that is fixedly installed on axle 142 also can be contained in initiative part 143.

In addition, the first and second follower 144A, 144B have profile of tooth 145A, 145B in axle 142 directions, this profile of tooth 145A, 145B respectively with initiative part 143 on the profile of tooth 143A, the 143B that have opposite.In addition, each profile of tooth 145A, 145B moderately press initiative part 143 sides with the profile of tooth 143A that will have on the initiative part 143, the mode that 143B partly sandwiches by the elastic force of spring 141A, 141B.And, crankshaft toothed wheel 4A by the supporting of axle 12A axle is connected with the gear 144Aa that the first follower 144A has, and be connected with the gear 144Ba that the second follower 144B has by the crankshaft toothed wheel 4B of axle 12B axle supporting, the driving force of motor 109 can be transmitted to the A of plunger mechanism section, B by this formation.

Particularly, make initiative part 143 in the situation of the direction of arrow rotation that represents with solid line in the driving by motor 109, in the first follower 144A side, because the profile of tooth 143A of profile of tooth 145A and initiative part 143 engagement, the first follower 144A and initiative part 143 linked and rotate, so the driving force of motor 109 is transmitted to the crankshaft toothed wheel 4A of the A of plunger mechanism section side via gear 144Aa.At this moment, in the second follower 144B side, because each tooth of the profile of tooth 143B of initiative part 143 moves on each tooth of corresponding profile of tooth 145B and crosses, therefore the second follower 144B is not connected with initiative part 143 thereby does not rotate, thereby the driving force of motor 109 can not be transmitted to the crankshaft toothed wheel 4B of the B of plunger mechanism section side.

In addition, make initiative part 143 in the situation of the direction of arrow rotation that dots at the driving direction by switch motor 109, in the second follower 144B side, because the profile of tooth 143B of profile of tooth 145B and initiative part 143 engagement, the second follower 144B and initiative part 143 linked and rotate, so the driving force of motor 109 is transmitted to the crankshaft toothed wheel 4B of the B of plunger mechanism section side via gear 144Ba.At this moment, in the first follower 144A side, because each tooth of the profile of tooth 143A of initiative part 143 moves on each tooth of corresponding profile of tooth 145A and crosses, therefore the first follower 144A is not connected with initiative part 143 thereby does 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 section side.

Therefore, even the formation according to above-mentioned switching mechanism section shown in Figure 6, by switching the driving direction as the motor 109 of drive source, also can obtain following functions: the first follower 144A and initiative part 143 linked and rotate, meanwhile therefore do not rotate owing to linking the second follower 144B, perhaps the second follower 144B and initiative part 143 linked and rotate, meanwhile owing to linking the first follower 144A and therefore do not rotate.

Next, the A of plunger mechanism section 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 section side links via the gear 44Aa of secondary gear 11A and the first follower 44A, and the crankshaft toothed wheel 4B of the B of plunger mechanism section side links via the gear 44Ba of secondary gear 11B and the second follower 44B.Particularly, the A of plunger mechanism section 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, the opposite configuration of sheet face of itself and sheet material; And the above-mentioned pin 14 and the pin 15A that connect above-mentioned parts.

Similarly, the B of plunger mechanism section 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 the 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 respectively drive pin 13A, 13B, and can rotate around axle 12A, 12B respectively.And, make crankshaft toothed wheel 4A, 4B carry out rotational motion by the rotation of motor 9 and via the C of switching mechanism section, so drive pin 13A, 13B can describe rotary motion trace and carry out rotational motion with the radius of gyration of regulation.Therefore, crankshaft toothed wheel 4A, 4B can have becomes the crankshaft component that forms lever-crankshaft mechanism as the function of bent axle.

Drive pin 13A, the 13B that linking arm 6A, 6B and crankshaft toothed wheel 4A, 4B possess links, and links via pin 15A, 15B and swing arm 5A, 5B, and linking arm 6A, 6B are along the hole column direction configuration of punch die hole 3Aa, 3Ab.Consist of by this, linking arm 6A, 6B can be on one side with drive pin 13A, 13B and swing arm 5A, the 5B links 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 becomes the attaching parts that form lever-crankshaft mechanism as the function of pitman.

The end of swing arm 5A, 5B is fixedly installed on the pin 14 by the supporting of punch carrier 7 axles, and the other end links via pin 15A, 15B and linking arm 6A, 6B.And, thereby can be rotated by punch carrier 7 fulcrum posts 14.By this formation, swing arm 5A, 5B can shake for shaking fulcrum with pin 14.Therefore, swing arm 5A, 5B can have becomes the lever part that forms lever-crankshaft mechanism as the function of lever.Here, the supporting of swing arm 5A, 5B one end can be undertaken by any one fixed part described later that has as the function of stationary links.

In addition, be fixedly installed at above-mentioned pin 14: with the become one brake cam 50A that carries out synchronous rotary and become one with swing arm 5B and to carry out the brake cam 50B of synchronous rotary of swing arm 5A.In addition, be fixedly installed retaining spring 51A, 51B in punch carrier 7, this retaining spring 51A, 51B have respectively and the protuberance that can respectively embed relative with each recess that is formed at brake cam 50A, 50B.By this formation, movement by pin 14, any one of the protuberance of retaining spring 51A, 51B or all be in the situation of the position relationship that embeds brake cam 50A, 50B recess, 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 by the end by punch carrier 7 supporting swing arm 5A, 5B, by the axle 12A, the 12B that are fixedly installed on frame 8 crankshaft toothed wheel 4A, 4B are carried out axle supporting, and with punch carrier 7 and frame 8 assembling all-in-one-piece tectosomes and obtain.In addition, die punching frame 20 also is assembled into one with punch carrier 7, thereby can have the function as stationary links.Here, punch carrier 7 and die punching frame 20 also can constitute at the A of plunger mechanism section, B and share.Above-mentioned punch carrier 7, frame 8 and die punching frame 20 are integrated by becoming tectosome, therefore become the fixed part in the punching machine 1.

In punching machine 1, as mentioned above, linking arm 6A has been set up two drift 2Aa, 2Ab, linking arm 6B has been set up three drift 2Ba, 2Bb, 2Bc.Be fixedly installed on drift installation portion 30Aa, 30Ab owing to drift 2Aa, 2ab are through with set bolt 31Aa, 31Ab, 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, 30Bc and set bolt 31Ba, 31Bb, 31Bc and drift 2Ba, 2Bb, 2Bc too.And, because drift installation portion 30Aa, 30Ab be through with and lock pin 18Aa, 18Ab and locked, wherein lock two vast sky 17Aa, the 17Ab that pin 18Aa, 18Ab will be arranged at linking arm 6A and be communicated with.Similarly, because drift installation portion 30Ba, 30Bb, 30Bc be through with and lock pin 18Ba, 18Bb, 18Bc and locked, wherein 18Ba, 18Bb, 18Bc three vast sky 17Ba, 17Bb, the 17Bc that will be arranged at linking arm 6B is communicated with.

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

Linking arm 6A, 6B to the perforation direction near the time, because the linking arm 6A, the 6B that shake are not mobile in parallel with sheet material, therefore the distance of the blade tip of sheet material and each drift 2Aa, 2Ab, 2Ba, 2Bb, 2Bc is because the difference of setting up the position on the length direction of linking arm 6A, 6B produces difference.Therefore, each drift 2Aa, 2Ab, 2Ba, 2Bb, 2Bc are approximately equal quantities to the amount of movement of perforation direction, therefore preferably with this Differential correspondence of setting up the position, adjust slotted hole 17Aa, 17Ab, 17Ba, 17Bb, 17Bc angle of inclination.

Above, in punching machine 1, the A of plunger mechanism section is attached between crankshaft toothed wheel 4A, drive pin 13A, linking arm 6A, pin 15A, the swing arm 5A, and be between axle 12A axle center and pin 14 axle center in the mode that forms stationary links in the center of rotation of crankshaft toothed wheel 4A, fix with punch carrier 7 and frame 8, utilize interlock that such formation can be by crankshaft toothed wheel 4A, linking arm 6A, swing arm 5A to drift 2Aa, the 2Ab driving of boring a hole.Similarly, the B of plunger mechanism section is attached between crankshaft toothed wheel 4B, drive pin 13B, linking arm 6B, pin 15B, the swing arm 5B, and be between axle 12B axle center and pin 14 axle center in the mode that forms stationary links in the center of rotation of crankshaft toothed wheel 4B, fix with punch carrier 7 and frame 8, utilize interlock that such formation can be by crankshaft toothed wheel 4B, linking arm 6B, swing arm 5B to drift 2Ba, 2Bb, the 2Bc driving of boring a hole.

About the lever-crankshaft mechanism of the invention described above, its mechanistic feature is described as an example of drift Machinery Ministry A example and thinks preferred formation.Here, except specified otherwise, applicable too for the B of plunger mechanism section.

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

In above-mentioned configuration, set up by 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 relationship of the 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 state with the sheet face level of sheet material, swing arm 5A can be in the state vertical with the sheet face.When giving driving force to lever-crankshaft mechanism, by 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 respectively large gradually by 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 by shaking of swing arm 5A, drift 2Aa, 2Ab are bored a hole when driving to sheet material, because swing arm 5A be the posture that approaches as much as possible with sheet face plumbness in the posture of position of readiness, so can obtain larger piercing force.In addition, larger amount of movement can be obtained for the perforation direction of drift 2Aa, 2Ab, the sheet material punching device miniaturization can be effectively made.

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, the attachment point of drift 2Aa, the 2Ab of linking arm 6A is 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.Consist of by 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 effectively make the miniaturization of sheet material punching device.

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

Next, take punching machine 1 as example, utilize aptly Fig. 1～Fig. 5 that the perforation action of sheet material punching device of the present invention is described.Here, the A of plunger mechanism section that Fig. 3 represents to drive punching machine 1 arrives the state of extreme lower position after sheet material wears two holes from the position of readiness shown in Fig. 1 (b).In addition, Fig. 4 is from representing to drive the B of plunger mechanism section of punching machine 1 with the rightabout viewpoint of Fig. 1 (b), begins to arrive after sheet material has worn three holes the state of extreme lower position from the position of readiness shown in Fig. 1 (b).In addition, Fig. 5 represents with punching machine 1 in the situation that sheet material wears two a series of perforation actions in hole.Yet to consist of clearly in order making, in each figure, to omit sheet material, in Fig. 5, omit the switching mechanism C of section and the B of punch block mechanism section 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 45A of the first follower 44A that is pressed by spring 41A at motor 9 prestarts is in the state with the profile of tooth 43A engagement of initiative part 43 outwardly.If the driving by motor 9 makes initiative part 43 begin to rotate via the direction of arrow that gear 10 represents with solid line in Fig. 2, then the profile of tooth 43A of initiative part 43 moves to the direction of the contact between the flank of tooth of the profile of tooth 45A of raising and the first follower 44A, thereby the engagement of profile of tooth 43A and profile of tooth 45A 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 45A just can be held.Therefore the link of the first follower 44A and initiative part 43 is become reliably, can rotate to the direction of arrow that represents with solid line.

On the other hand, in punching machine 1, if the direction of arrow that initiative part 43 is dotted in Fig. 2 by drive motors 9 via gear 10 begins to rotate, then the profile of tooth 43A of initiative part 43 moves to the direction between the flank of tooth of the profile of tooth 45A that leaves the first follower 44A, so the engagement of profile of tooth 43A and profile of tooth 45A is disengaged.And each tooth of the profile of tooth 43A of final initiative part 43 moves on each tooth of profile of tooth 45A of the first corresponding follower 44A and crosses.Afterwards, as long as motor 9 continues to drive to this direction, profile of tooth 43A and profile of tooth 45A just can't keep aforesaid engagement.Therefore since the first follower 44A do not link with initiative part 43 thereby do not rotate.

In addition, punching machine 1 is constituted as, and is under the state of position of readiness in the A of plunger mechanism section 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 section 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 section can not cross the counter-force driving of boring a hole by above-mentioned.

The driving of the driving direction of the A of plunger mechanism section and above-mentioned drive source or the relation of non-driving, with the situation of the B of plunger mechanism section be inverse relationship.Namely, the direction of arrow that the driving of the B of plunger mechanism section by motor 9 dots initiative part 43 in Fig. 2 is rotated, thereby rotation also drives the second follower 44B, even initiative part 43 rotates to the direction of arrow that represents with solid line, the second follower 44B does not also rotate thereby be not driven.So the action itself as plunger mechanism section is identical, therefore a series of perforation actions of the following A of plunger mechanism section that the rotation of above-mentioned initiative part 43 and the first follower 44A is caused describe, and omit the explanation of a series of perforation actions of the B of plunger mechanism section that the rotation to the second follower 44B causes.

In punching machine 1, if the driving by motor 9 makes initiative part 43 rotations and gear 43a begin to rotate to the direction of arrow that represents with solid line, then profile of tooth 43A and profile of tooth 45A engagement makes the first follower 44A begin to rotate to the direction of arrow that represents with solid line, and then makes crankshaft toothed wheel 4A begin to rotate to the direction of arrow that represents with solid line via secondary gear 11A.At this moment, can't not rotate with the second follower 44B that initiative part 43 carries out link as described above.

Therefore, in this case, become the state that drives the plunger mechanism A of section and do not drive the B of plunger mechanism section, after this also become the state that only drives the A of plunger mechanism section.Here, in punching machine 1, adjust respectively the angle of inclination of each slotted hole 17Aa, 17Ab, 17Ba, 17Bb, 17Bc etc., so that each drift 2Aa, 2Ab, 2Ba, 2Bb, 2Bc are fit to the amount of movement of perforation direction and with the position relationship of sheet face.

In the A of plunger mechanism section, rotation by above-mentioned crankshaft toothed wheel 4A, i.e. rotation by 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 45A of the first follower 44A, 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, if pay close attention to the other end with the swing arm 5A link of pin 15A and linking arm 6A, then since the pin 15A side of swing arm 5A move to the direction of intersecting with the direction of boring a hole for shaking fulcrum take pin 14, therefore the pin 15A side of linking arm 6A moves to the direction near sheet material just as the movement of swing arm 5A is carried out moving the following movement.By the position of above-mentioned action drives pin 13A by peak, 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 is in the state of Fig. 5 (b) expression, be positioned at the drift 2Aa of swing arm 5A side, the drift 2Aa to than the position of readiness that is positioned at Fig. 5 (a) expression the time slightly moves near the direction of sheet material.In addition, be positioned at the drift 2Ab of crankshaft toothed wheel 4A side, direction from sheet material to the drift 2Ab when being positioned at position of readiness that slightly leave moves.If crankshaft toothed wheel 4A further rotates to the direction of arrow 49 expressions from this state, because drive pin 13A side and the pin 15A side of linking arm 6A all move to the direction near sheet material, therefore 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 by adjusting crankshaft toothed wheel 4A, just can make as mentioned above linking arm 6A to moment that the direction near sheet material moves from different with pin 15A side in drive pin 13A side, the perforation of two drift 2Aa, 2Ab can be driven thus and set the different moment for.By being bored a hole to sheet material 2Aa, 2Ab by each drift in the different moment, can bore a hole with less piercing force thus, thereby reduce driving force and can make the drive source miniaturization.

In the A of plunger mechanism section of punching machine 1, drive two drift 2Aa, 2Ab and bore a hole in the different moment.If the rotation of crankshaft toothed wheel 4A reaches about 120 degree shown in Fig. 5 (b), at first the blade tip of drift 2Aa arrives 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, in the situation that crankshaft toothed wheel 4A approximately turns to 150 degree, be approximately 155 degree at the position of pin 15A swing arm 5A and linking arm 6A angulation, the position that the waving angle of swing arm 5A is set as the state shown in the distance map 5 (a) is approximately 65 degree.

In addition, arrive till the states that surpass 170 degree shown in Fig. 5 (d) in the rotation of crankshaft toothed wheel 4A, finish the 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 in the mode of changing moving direction.

In a series of perforation action of the above-mentioned A of plunger mechanism section, the movement of two drift 2Aa, 2Ab, length that can be by each drift 2Aa, 2Ab or the slotted hole 17Aa, the 17Ab that lock them have or not to tilt or the angle of inclination difference are adjusted.For example, punching machine 1 shown in Fig. 1 (b), by slotted hole 17Aa, 17Ab are arranged inclination, and make the angle of inclination different in order to increase slotted hole 17Aa, 17Ab near the inclination of crankshaft toothed wheel 4A side, thereby can be adjusted into the amount of movement of each drift 2Aa, 2Ab basic identical.Thus, can make commonization of parts such as drift guide portion 16Aa, 16Ab of each drift 2Aa, 2Ab.

Therefore, if punching machine 1 is in the C of switching mechanism section, by driving the side as the motor 9 of drive source, the direction of arrow that initiative part 43 is represented with solid line in Fig. 2 is rotated, then the first follower 44A and initiative part 43 link and rotate, and the second follower 44B is not connected with initiative part 43 thereby does not rotate, and the lever-crankshaft mechanism that therefore only drives the A of plunger mechanism section just can to two drift 2Aa, the 2Ab driving of boring a hole, can wear two holes at sheet material thus.Perhaps switch the driving direction as the motor 9 of drive source, the opposing party by drive motors 9 makes initiative part 43 rotate to the direction of arrow that dots, then the second follower 44B and initiative part 43 link and rotate, and the first follower 44A is not connected with initiative part 43 thereby does not rotate, therefore the lever-crankshaft mechanism that only drives the B of plunger mechanism section just can be to three drift 2Ba, 2Bb, the 2Bc driving of boring a hole, so can wear three holes at sheet material.

Above, according to switching mechanism of the present invention section, can obtain to have the sheet material punching device of handoff functionality, wherein handoff functionality is to select to drive two groups of A of plunger mechanism section, B by the driving direction that switches drive source, can bore a hole to the drift that the A of plunger mechanism section possesses drives and bores a hole at sheet material, the function that also can bore a hole and drive and bore a hole at sheet material the drift that the B of plunger mechanism section possesses.In addition, according to the plunger mechanism section 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 devices in aspect such as small-sized property, energy saving, low costs.

Therefore, can obtain to have the sheet material punching device of a conduct example of the present invention of following handoff functionality, this handoff functionality refers to, such as being that two holes such as 70mm and distance between borehole are three holes such as 108mm in order to switch the distance between borehole of mainly using morely at the North America circle, and possess two drifts and possess three drifts at the B of plunger mechanism section at the A of plunger mechanism section, make them corresponding with punch position on the sheet material, to drive the plunger mechanism A of section to wear two holes at sheet material by selecting, perhaps driving the B of plunger mechanism section and wear three holes at sheet material, is the function in two holes or three holes thereby can select the perforation number to sheet material.

Can also obtain to have the sheet material punching device of a conduct example of the present invention of following handoff functionality, this handoff functionality refers to, be two holes and four holes of 80mm in order to switch the distance between borehole of mainly using morely at the Europe circle for example, and possess two drifts at the A of plunger mechanism section, possess four drifts at the B of plunger mechanism section, make them corresponding with punch position on the sheet material, to drive the plunger mechanism A of section to wear two holes at sheet material by selecting, perhaps driving the B of plunger mechanism section and wear four holes at sheet material, is the function in two holes or four holes thereby can select the perforation number to sheet material.

Claims (7)

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

Described sheet material punching device possesses: drive source, two groups the A of plunger mechanism section and the B of plunger mechanism section and switching mechanism section,

The described plunger mechanism A of section, B possess respectively: by the drift of boring a hole at sheet material with the engagement of punch die hole and the lever-crankshaft mechanism that this drift is bored a hole and driven,

Described switching mechanism section has:

Initiative part, the driving direction of itself and described drive source rotates to twocouese accordingly;

The first follower, its side by described drive source drives, and rotates with described initiative part link and to a direction;

The second follower, its opposing party by described drive source drives, rotates with described initiative part link and to a direction,

Described the first follower links with the lever-crankshaft mechanism that drives the described plunger mechanism A of section, described the second follower links with the lever-crankshaft mechanism that drives the described plunger mechanism B of section, by switching the driving direction of described drive source, switch the described plunger mechanism A of section of driving or drive the described plunger mechanism B of section.

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

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

The tooth that possesses by described initiative part and described follower intermeshing links described follower and described initiative part and rotates.

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

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

The plane that comprises the described front flank of tooth is formed 70～110 degree with the inclination angle that becomes with the vertical plane of the center of rotation of described initiative part.

4. the described sheet material punching device of any one in 3 according to claim 1 is characterized in that,

Described lever-crankshaft mechanism possesses:

The crankshaft component that links and carry out rotational motion with described switching mechanism section;

The lever part that one end can joltily be supported;

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

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

The rotational motion of described attaching parts by described crankshaft component shaken to the perforation direction of drift, thereby to the driving of boring a hole of described drift.

5. sheet material punching device according to claim 4 is characterized in that,

Possess stop mechanism section in the described lever-crankshaft mechanism,

Described stop mechanism section suppresses the rotational motion of described crankshaft component, perhaps suppresses shaking of described lever part.

6. the described sheet material punching device of any one in 3 according to claim 1 is characterized in that,

Side among the described plunger mechanism A of section, the B possesses two drifts, and the opposing party possesses three drifts,

Wear two holes by the driving of the side among the described plunger mechanism A of section, the B at sheet material, wear three holes by the opposing party's driving at sheet material.

7. the described sheet material punching device of any one in 3 according to claim 1 is characterized in that,

The described plunger mechanism A of section, B possess respectively two drifts,

The drift of the described plunger mechanism A of section is configured in both end sides, drives in the time of by the described plunger mechanism A of section, B and wears four holes at sheet material, wears two holes by the one-sided driving of the described plunger mechanism B of section at sheet material.

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