DE1452786A1 - Punching device for use with a punch or other drive element - Google Patents

Description

Minnie Punch and Die Company, Inc., Union, New Jersey (V.St.A.)

Punching device for use with a punch or

another drive element ..

The invention relates to a punching device for use with a punch or with another Drive organ.

The usual punching device has one made of steel, directly attached to the punch of a punching press associated punch set, which are relatively difficult to handle, difficult to set up and expensive to manufacture 1st. Its accuracy depends to some extent on the orientation of the stamp to which it is attached.

The purpose of the invention is to create a punching device that works economically and yet accurately.

According to the invention, there is a dance device that can be used with a punch or another drive element provided, which has a parallel plate punching die:

909849/0078

H52786

which contains a movable member, aas brings a Vi Stückabschnit "out of engagement with one of the male and female Hatrizenteile ues Sa.zes, who.n elno Auev.'ei'i'ervorrichtung when responding to the back movement of the punch after a The punch stroke acts against the movable glia.

The invention is referred to below in conjunction; n-lt the Drawing explained in more detail using two exemplary embodiments. Pig. 1 is; a partially sectioned view of a Designed as an emergency dance facility of the invention in the open position. Pig. Figure 2 is a similar view of the tensioner

in closed position.
Fig. 3 is a horizontal sectional view after

Line AA of FIG. 1.
FIG. 4 is a horizontal sectional view taken from FIG

Line 3-B of the 3 ¹ Ig. 1.

Pig. Fig. 5 is a fragmentary sectional view, on an enlarged scale, showing the trigger actuator with the punch in the open position. Fig. 6 is a similar to Figure 5 Schnitoansicht that the Aussto £ erbetätigungsglieä oe \ closed or S;. Reproduces anzsteliung befinölieher-.itar.zeinrishtung. Fig. 7 is a 3jh: ii view along the line CC cer? Ig. 1 and shows a carrier wiper at

9098A9 / .0078

8AD C "! '" ::

U52786

in £ oöf fne'cer Stellurir there is a stamping

r. P is a cream view taken on line DD of FIG. 2 and seißt the carrier scraper in resoiücssener or Punchctellunc ^ efintiliüher; jt ar.:.: Device.

i? ir. 9 isu a plan view of aas Auss ^ ciei ^ betaui- ; Tunrsij; liea according to PIc. "".

i? ii; .lC j se a vertical Sohnittansiclv- a weiceriiii. ^ft usführiui (sfoi'rn a S'can ^ einrichtunc {-eü.äi of the invention, with the I-.atrizeiisat: is in the open position.

L ^? ig.ll is; a senior partial sectional view of this embodiment in the punching position.

i ^? iG.12 is a plan view of the ejector device.

Pig.13 is a sectional view taken along line 13-13 of FIG. 12.

Pig.14 is a sectional view of a wiper actuator of the die set.

Pig · 15 is a top plan view of the wiper actuator according to Fig. l4.

The punching device shown in Figures 1 to 9 has a parallel plate punching die set, in which a punch or other drive element is used, the die set between the punch and a

909849/0078

SAD C ?:. ■■. '! ·. V-

Pressing the base together in order to punch a piece from a web of stock material.

Like in particular from Pig. 1 and 2 can be seen, the die set generally designated 2 has a Male plate 4 and a female plate 6, which are made of magnesium. The two plates 4 and 6 are insane. substantially parallel and arranged so that they are towards and away from one another by means of guide pins 8 can be moved, which are attached to the male plate 4 by retaining rings 10 and in guide bushes 12 of the male plate 4 and in guide bushes 14 of the female plate 6 work, with retaining rings 16 the protrusion of the guide pins 8 from the sockets 14 of the die plate 6 prevent. It can thus be seen that the guide pins 8 in the sockets 12 of the male mold plate 4 fixed and in the sockets 14 of the die plate 6 / ~ are slidable. The guide pins 8 are each made of springs 18, which press the two plates 4 and 6 apart, the retaining rings 10 and 16 in on the guide pins snap in formed ring-shaped nutei20, to prevent the panels from separating. An important advantage of this design is that the guide pins 8 for setting up and maintaining the die set are easy can be removed. Since the guide pins are removable, they can be used with other die sets.

909849/0078

- 5- H52786

The die set rests on a base 22 on removable mounting blocks 24, a removable support block and removable carrier scrapers 28. A stamp plate 30, which is actuated by a press or other drive device, can be connected to the upper surface of the male no plate 4 engage in order to carry out this plate of the punching process to move downwards. Another one An important feature of the invention is that due to this arrangement, misalignment of the punch is not transferred to the die set because the guide pins 8 determine the alignment of the die set.

As can be seen from Fig. 1, 2 and 5, a cutting die 32 is attached to the male plate 4, which an ejector plate 3 ^ and a floating ejector pin 36 has. In the male mold plate 4, near the ejector pin 36, an ejector actuation member 38 is arranged. Pig. 1 and 5 show the relative position of the ejector actuator 38 and ejector pin 36 when the die set is open. On the pusher holding pin 49 is on the plate 3 ^ by means of a Screw 4? attached. The pin 49 is in a cylinder 51 movable and serves to limit the movement of the ejector plate 3 ^ see below.

Like from Pig. 5 and 9, the ejector actuator is shown 38 has a round housing 40 on which a shoulder 42 is formed. disc-shaped round

909849/0078

Springs 44 fill the cavity 46 of the housing 40 and press against a possible cushion 46. Holders 45 fix the upper end of the housing 40 and limit all movement of the cushion 48. An de: * male plate 4 is; · by means of a 3ol ^ ens 52 a Verriereiunrteil 5 <- detachable: «= - firm * ;. The floating ejector pin JC is displaceable in an opening 54 penetrating a hole punch back plate 25 and a hole tanzerihal '^ e plate 27 and is attached to the movable cushion 4c- aes ejector portion; _: s ^ xiedes 3 & an.

The Lochsuanzenhaltepla ^ te 27 serve as a mounting part for punching. The punch back plate 25 is used for this. To support punching in their correct position or to hold.

It can be seen that the removable ejector actuator 3 ^ is removably secured by the locking means 42, 50 and 52. Since the removable Betätigunrsgiiea Is ^- G, it is interchangeable with other similar die sets from.

? ig. Figures 2 and 6 show the ejector actuator 38 during the punching process as the sternplacte ^ O moves against the male plate. The punched piece 55 (FIG. 2) presses against the ejector plate 34 and presses the ejector pin 36 against the movable cushion 48 of the ejector actuating member 3δ, whereby the disk-shaped springs 44 are compressed, as shown in FIG. 2 and £

909849/0078

- "- ι * ♦ ο c ι ο ο

vcranE.; -, aulich'L. icu. llae !. / ufhebua _t ·; of the by uie Stempelrl a. -o J: 0 exercised Cr ¹ :.;.; sv; ii \: cri die ^ usairitnenrfepreßten i'cdor :; hh Ual.inrehenu, the 1st issen V ^.; ; rain uen .Stift ^ C ;; υ üriioken, so that the ejector plate j ^ against the ejector. ; .f nzte StMoL 5D feti'ieben and uioses thereby from the Sun .-. envy matrlse J2 ausjes; <;: ieu becomes.

The Maurl. Enplaite I is called up by the base 22 by means of the t :: i ^ rcrnbarcn monta; -blocks 2-i _; estlr, ;;; '. and at her fes *. _t -: e - Lecz (Pi {T. 1, 2 uiiu 3). The removable carrier block 26 _w rM, ';. ·. also ".ur Abstüt: .uni: the Mauri ^ onplatte 6 at.

On the Mavrlceiipla ^ te ·. » is. a 3cL cutting die 5 * - fastened *. The removable carrier wipers 28 wind to the effect that the die set from / .ustUt.en and after the Stan ^ vorcang the work "fcückniauerial from the .Sehneidpauri: e 5 ^! 7 shows in section a Trütrerabstreifer 2> ^c , when the Hacrizensat; is in the open position. In a cavity ^ 1 of the scraper 2C in the head of a pin that actuates the carrier scraper 35 disc-shaped round Springs 29 stacked on top of each other The scraper 28 is attached by hand pressing on the pin 35. An elastic ring 7 arranged on the end of the pin 35 compresses and moves through a cushion 33 »around the pin 35 and the scraper 2δ towards one another Connect by moving the pin 35 downwards

909849/0078

-.- XL

the disc-shaped springs 29 compressed so that After releasing the punching pressure, the springs 29 move the pin 35 upwards to remove the punched piece from the Stripping off the cutting die 56. The elastic ring 7 holds the carrier scraper 28 against gravity and enables nevertheless easy removal.

Fig. 8 shows the carrier scraper 28 in the compressed Position when punching again and shows that a stripper plate 37 by means of a head 39 on the pin 35 and a bolt 4l is attached. One on the thread of the bolt 4l applied liquid adhesive prevented a creep. A retaining ring 43 prevents the carrier scraper falls off the pin 35. The head 39 projects over the plate 37 by a distance that is at least is equal to twice the thickness of the material to be punched. The normal way of working is to eject the punched piece and then strip off the material skeleton. Incorrect spacing of the head 39 over the plate 37 causes improper ejection and stripping, in that the stripper removes the material skeleton around the punched out Drifting backwards.

The protrusion need not be provided on the stripper pin 35, nor is it necessary that the protrusion is on the ground. The preceding description illustrates an embodiment which has been found to be useful Has.

909849/0076

It should be noted that the preferred mode of operation is to eject the punched piece from the cutting die, before the material skeleton is stripped from the cutting male. This is achieved in that the stripper plate 37 by a distance during the punching process is moved downward that is greater than twice the thickness of the material from which the pieces are being punched. D-iher bumps in the cancellation of the generated by the stamp The ejector presses the punched piece out before the stripper plate moves upwards sufficiently to strip the material from the set of matrices.

In the further embodiment shown in FIGS. 10 to 15, one equipped with an ejector 105 is at rest Parallel plate die set 103 on a base 107 and is pressed together by a punch 109 to make out a web of material 113 pieces to be punched out.

A male plate 115 is arranged parallel to a female plate 117. The die plate 117 is on a Mounting block 119 is arranged, which rests on mounting blocks 120 and removable support brackets 12] |. The mounting block 119 is fastened to the base 107 by means of bolts II8.

Guide pins 122 with springs 123 act to the effect of the parallel plates 115 and 117 in their relative movement respectively.

A back plate 124 rests against male molds 125 arranged in male mold plate 115 and also serves

90 * 149/007

- IC -

as assembly part for the ejector 105.

On the male part 115 is a cutting die attached, in which an ejector plate 127, which there ;; u serves to eject the punched pieces in their Lajje is held by ejector pins 12c.

The ejector 105 (B ¹ Ic. 10 to 13) is arranged on the back plate 124 and has a rack Ij) C, a stop plate I31 and a movable ejector plate 132.

The ejector frame 130 is fastened to the back plate 124 with the aid of bolts 133 passed through bores 134. On the movable ejector plate 132, they are attached to holding 3 guide hoods 135 which can be displaced in openings 13 ¹ ^. The heads 137 of the screwdrivers. 135 prevent the ejector plate 132 from crenating itself from the ejector frame 130. Disc-shaped springs 13 3, which tends have .ierauszudrücken the Auswerferpiatte 132 from the frame I3C ^1, by the springs passing through a hub 139 are held in / usrichtung. the Anschla * vplauce 131 is fixed by screws to the frame 130.

FIGS. 14 and 15 show one of the carrier scrapers 121, which support the mounting block II9 and for stripping contribute to the web of material from the die set after a punching process.

The operation is best understood from FIGS. 10 and 11, which show the punch, the ejector and the Matrizenauz in the open or in the closed position

909849/0078

6AD

U52786

reproduce the punching thread.

From Pit :. 10 it can be seen that the stamp

is located in the raised lare, the I-die set 103 is open and the movable fusweri'er plate 1J-2 touches the patrix root plate 1'2-4 and the outer pins 128, so among other things the ejector plate 12 * ⁷ their before -esc .-. top position einüimijiv. The Mater 1 albahr. Ii]; is in the position i "for the stan / vorr; an * -.

i? ij, · :. 11 illustrates the s ^ ancing process carried out by Moving the temple downwards causes the stop plate IJl of the ejector 1C5 is set. The patrix plate ; e 115 is then with the cutting die 12c and the patrias 12? abv / arcs moves, un from the material web II5 Piece l48 ausjus; anzen. The Ausstoiierplat'ce presses 127 the ejector pins 123 up against the ejector plate 132, by which the disk-shaped springs 1> S intersecting honeycombs 139 upwards into openings 145 in the stop plate IJl are moved. In Fig. 11 is at 146 a punched-out that falls after the punching process Refuse indicated.

When the punch 109 returns, the disk-shaped springs 138 press the ejector plate 132 downwards against it the ejector pins 128, which in turn press the ejector plate 127 against the punched piece l48 to make it from the cutting die 126 of the die set 10J5.

909849/0078

It can be seen that the removable ejector acts to remove punched pieces from the. Matrizenat; -; eject. The bolts IJjJ allow an easy Removing the ejector 105 from the die set so that it can be used with other die sets. It is therefore not necessary for every parallel plate die set to provide an ejector.

More than one ejector can be used with one die set, however the fact that the Ejector of universal / rt is a significant advantage. The characteristics of universal accessibility and removability are essential advantages for punch die sets.

It should be repeated again that the punching device shown in FIGS removable, universally fitting ejector device a parallel plate punching die set with a punch acting on the ejector to carry out the punching process provides.

By arranging the ejector device on the die set, there is no special adaptation of the punch necessary.

The removable feature of the guide pins enables that the guide pins are used interchangeably so that there are no separate sets of guide pins must be kept in stock for use with each die set. The fact that the removable guides

909849/0078

Runfjsstii'te allow a convenient removal or disassembly of the die set, enables the operator to easily separate the male plate from the die plate to sharpen the male or make necessary repairs or adjustments to the die set. The removable ejector and carrier scrapers provide a means of inevitable
Eject the punched piece and release the material from which the S Λίοκ is punched.

Because the ejector actuator and carrier gripper are removable, they can be used interchangeably with other die sets of the same general type, eliminating the need for
Provide a full set of actuators for each set of dies.

The inner training of the actuator makes possible a powerful inevitable effect with an I'indes taahl of parts.

Claims (1)

- i4- - H52786 Claims / 1 A punching device for use rr.lz a .: punch or another drive element, characterized by a parallel plate punching die set, egg eir. Movable member contains, which brings a workpiece section into engagement with one of the male and female parts of a set, if, a dispensing device works when responding to the back movement of the punch after a punching stroke against the movable member . 2. punching device according to claim 1, characterized in that da3 in one of the male and female parts a son's oath matrix is arranged, that the movable member a stamping plate back. Ejection of the work piece Lafosohnitts from which: r.eidr :: atrize is ;, aa3 is the four-person arrangement; an Ai; ssto: 3erbetäti £ ungsgiied is, which a fea-erburdened Zusarr.rr.endrucribaren part and a freely movable part Auss'roSerotr'-i't zv /:. ~ Chen the ;, susamrr. Pressable part and the Out:; o3erplatte has, so that when the die set is actuated by pressing between the punch and a base, the cutting die against the workpiece portion acts, which is applied to the ejector plate, urr. against to work the au3stc2erstift, and which the feäerbei & constant compressible part of the ejector actuating member squeezes, and on the return of the stamp in his normal position of the compressible part of the actuation 909849/0078 _t li.G'ic aüM dowry! ί ^Μ ". e. ^ eri presses the ejector plate to remove ur dor. VJei \ .EtUc.; abi? c; ir.Jtt. from the cutting die. >. 8 * oa! I :: eir.richtun.-j uv ^ 'i. Claim 1, characterized in that daw in do ;; · cirxn uer Patrir.en- and Ilatrir.Gnteile ci: io So. neidpc. ".; rise ai \; ecrdiic"; iat, aa.j χ ac movable limb fci: K Abstrei'Gi'pia'cue:, rr ;, v: elcj: c de: i V.'eri: sl "üci> section aitc of his la rc- un ; the 3e;: r.civ "oa" rir.e releases, and that "..ie Aus \ 7erfervorricl.tun ^ ei :. Abscreii'erbetUticuacsGlied let, Mclc.iets a reversible part and a stripper plate connected to the stripper plate: loi.i:.! Ii_-sstii't aufvieiot, go ur :; after pressing together the I - '»atri ^ eiiGat:', es ^ wisclien de :: i otempel and a base and after the return of the stamp the susauniendiilcizable part of the stripper cover clamp moves and drives the stripper cover pin, which in turn drives the wiper plate to release the workpiece section from its position around the Sehneidpatrize. H. Punching device according to claim 2, characterized in that the male part and the female part are flat magnesium plates, that the cutting die and the ejector plate are connected to the male plate in order to move therewith and to receive the section punched out of the workpiece, that one with the die plate Cutting male and a stripper plate cooperating with it are connected that the ejector actuator 909849/0078 - 16 - U52786 and Ausctoßerstift in the Patrii: enplatte and the cutting die is removably arranged and that at least eil removable AbsGreiferbetatitiin & is sglied provided which supports the die plate on the base and the stripper is operated to the residual to the cutting Patriae Werkstüekskelett after Stan priority of the Schneidpatrize strip. 5 «starting device according to claim 4, characterized in that that the movable scraper actuator has a gel housing which is a spring-loaded squeezable Contains cushion and a stripper pin and which supports the die plate, the stripper pin itself extends through the die plate and with the stripper plate is connected so that the stripper pin is depressed by the workpiece during the punching process and when lifting: the punching pressure the spring-loaded cushion acts via the pin to the stripper plate to move and thereby strip the work piece skeleton from the mandrel. 6. Punching device according to claim 1, characterized in that the ejector device is a removable one An actuator having a housing with partially compressed disc-shaped springs is filled and has a movable end part, the movement of which is limited by holding means. 7. punching device according to claim § characterized 909849/0098 draws that the actuator also has a freely movable Having pin which is in engagement with the movable end portion of the housing. 8. punching device according to claim 4 or 5, characterized That is, on the stripper plate or the male plate Projections are attached which extend a distance at least equal to twice that is the thickness of the workpiece. 9. Punching device according to claim 1, characterized in that the movable member is an ejector plate and that the ejector device on the mattress set close by the ejector plate is arranged and a frame, an ejector plate movable within the frame, with the Ejector plate connected and resting on the ejector plate Ejector pins, arranged between the frame and the ejector plate and pushing them apart elastjtehe Has parts and holding means which connect the frame and the ejector plate to one another to their relative movement to limit. 10. Punching device according to claim 9 *, characterized in that the holding means have bolts, the heads of which slide in recesses in the frame and the ends of which are screwed into openings in the ejector plate. 11. Punching device according to claim 9 or 10, characterized in that the elastic parts consist of a plurality of disc-shaped springs which between a 909849/0070 BAD OP.! "NAL - 18 - I4t> ^ Base plate of the frame and the ejector plate crdnet are. 909849/0078 -41- Blank page