DE2336534B2 - Zigzag cutting device - Google Patents

Description

4. Apparatus according to claim 2 or 3, there- drive and control for the lateral movement of the characterized in that the rocker arm via carrier carriage in the row direction one in the direction a radial cam acting along a grooved track (8) in the longitudinal direction 40 de: guide tracks of the lever (5) movable sliding block (7) in connection with an interposed, one and a pivoted rocker arm that is attached to the sliding block and is rotatably mounted on the bearing side (6) acts on the carrier carriage (1). be seen. The time and the number of previous

5. Device according to one of claims 2 and backward moving steps of the up to 4, characterized in that a carrier slide is known per se due to the curve character Compressed air or hydraulic cylinder (9) ser radial cam is determined. When switching to constant frictional connection between roller (4) and another round cut as well as with the over-curved path causes. passage from z. B. triple to quadruple zigzag needs

only the control cam has to be exchanged.
50 According to another feature of the invention

the rocker arm can be provided with a roller,

soft rolls on the peripheral cam track of the radial cam. Here the vibratory

The invention relates to a zigzag lever over a longitudinal cutting device along a groove path 7um low-waste cutting 55 direction of the lever sliding sliding block and of blanks or discs made of strip material with a bearing pin attached to the sliding block controllable, step-by-step, carrier slide attached to a slide and impresses on it Tape feed to a single punching path pulse in curve-dependent direction. tool, where punching tool and tape feeder The rocker arm is the size of each required device are movable relative to each other and set the 60 such step.

PCBs in an optimally material-saving way. The proposed is supplemented and perfected.

finally chose angle to the belt conveying direction arranged invention also by the fact that th row can be punched out one after the other and after further a known air pressure or hydraulic delivery of the tape by a row spacing an- constant frictional connection between the roller and the cylinder closing the plates of the following row 65 causes the cam track.

one after the other in the opposite direction to the previous one. With the proposed invention there is a number of possibilities

Row can be punched out. associated with advantages, which are essentially

A zigzag cutting device is known - on the principle of a single stationary cutting

«To found rkzeuRS. Determining the position of the feed track for the one with the controllable tape guide

Sarenden band material corresponds to moving * "^ Wj ^ jSS, _ω an

oeen on the representation in the Cartesian coordinate system.

Stern, always two measured values, namely a so - guidance for ***** -Dge "g _factory.

S in the longitudinal direction (x-axis) and such a 5 JJ »J ^ gjStri SäscLtt traces in

^ W ith material feed

ricmune escapes the invention in principle from the fact that in re

When positioning the ^{strip material} before each emzi ß ^e ^ ^V ° ^right ^ S _ne representation of a work ^e cutting process on differently directed steps- »J / | ^^ SnslWen so-

to refrain from movements. The tape to be ^fed -® ^ ^dstr t ^üe ^ _r ^; _h ^ _{ol2 e

SSSfi only requires a single prefix like nut Aigbeto ^ gÄgj ^ ^ thrust step in the resulting axial alignment. Here- Fi g.3 the s «J« ™ _. ^^ Rondenschmtt-

This results in a fabric strip with metir ais in terms of structure and mode of operation

relative * ^^^ «S ™ ^ * ^ _ * ^{5 Sp} ^ 4 the schematic representation of a work-

X Agreement of all advance steps, from .. nmg to

on the roll diameter. Through the un- Sctat. "" ¹ ^ JgJ _cin "the feed device

Sgen on the roles ^ JgJ _cin "the feedVo

£ ίΤί £ 3 ^ £ & ΐΖ5 Γ & ÄfdÄKu ^ ^ yew S.ne.d "Sch in a much better Schmtttolge whereby ™ triple Z ^ ctoct _fiction,.

femlich idle return path complete. g m «'" J ^^ f

^ SSS * "* -. ^ E also d, ReaiUie, Uj -« «- rSSt ^ Ä'S

On the elevation of one of the round cuts with multiple lanes, 3 ° not f "^^ _e £ 5" round blanks in predetermined work, we can see as much as ¹ ; _{in F} 2 braids

it

m elevation of one by rounds pf ^^ _e £ 5 «rounds in predetermined

used strip of material shows uie ma- ^^ gS, ¹ ; _in Fig. 2 attached g £ ^ SÄ £ £ Ä A £ P, _J A _SÄ s the

^{This winkU} ""

the end

Streiien-LangsriLinung ^ -n, ^ ** _{,,, w} .. "..

Fact is a basic requirement for the general applicability for any round cuts. The tape material may therefore in all a _ D _ 1 + e always at the same angle cases the Ronden cos "= - = - - - cutting tool are fed. * o ^{K f}

This knowledge accordingly results in a feed device, which with the bandwork - correspondingly <* - 60, where a - material is a step movement in the direction of the cutting rows, i.e. on a guide path of 60 ° to c = D f e and D dem Diameter of a ron tape length. The crotch grips can be extended to each other with the same web width e on all sides by the circular diameter and the central spacing of two; as well as the center-to-center distance of the longitudinal quadruple etc. zigzag). (x-axis) one behind the other, i.e. on one cutting track. After making the round cuts in each of the 50 lying round cuts. The diagonal left or right edge zone of work step c is finally also formed as a resultant of the fabric tape requires the transition to the then following parallelogram, which is only a vertical offset α of two adjacent cuts through the next diagonal row of cuts its longitudinal tracks (.x-axis) and the horizontal central direction. With erneutein terminals of the strip 55 was re-b of adjacent cutting lines (y-axis) then pick up the feed steps on the 60 ° represents.

inclined path in the reverse direction of movement from F i g. 2 the cutting sequence can be

tion. In such a change there is the possibility of going from one to the next cut

the possibility of zigzag cutting in any row. Compare with the dashed lines in the case of strip material of indefinite length. 60 direction pointer shown.

Of course, the invention takes into account in FIG. 3 it can be seen that the principle

a variant also the cutting out of the shape of the diagonal step zigzag cut without further ado

Blanks in zigzag made of strips or strips - also for any number of cutting tracks for economic

material. The processing of appropriately suitable materials, which is borrowed here with rational use of material also diagonally located, but mostly from the 65 band material can be used. Does it

Angle of inclination a = 60 ° to the longitudinal direction of the belt, however, as in FIG. 4 shown, with multi-lane

deviating rows of cuts can easily be made use of the tape material around the cutting

By using a direction-adjustable guide from shaped blanks, nature is diesel

File the rows of cutouts accordingly - to transfer them to the starting position. The curve mark Material-saving, but not always under one web, in this case two ascending lines as well An angle of 60 ° to the direction of strip rolling. Principle - two descending flanks besides the essential ones But borrowed can also have the necessary basic paths for such shaped blanks. Between the 5 feed steps on which the present invention is based are certain idle times of the loading device use. movement necessary to cut the blanks. That

The device according to the invention is shown in FIG. 5, the same also applies to the respective outer layers of the slide 1, in which the tape is pushed onto a movable carrier slide 1, the material of which is carried out onto the next row of cuts.
Guide track 2 at an angle α, for example io from F i g. 6 is also the structure of a radial 60 °, running diagonally to the main direction A ... A ' , the control curve 3 for cutting in triple zigzag is a controllable fixation 10 for the band B (Fig. 1 can be seen up to 4 by means of six function-related segments ) arranged. If necessary, it can be borrowed here. The band material B fixed on the slitum by holding tongs 10, a bed 1 from holding and transport tongs 10, 11 a, thus receives the necessary tong feed unit. 15 derliche orientation for the pre ^c ^ Henen Ronden

The freedom of movement of the carriage 1 includes sections. The transition to the next row of cuts, Hch of his above-mentioned pliers unit, roughly the figure. 2, is always guaranteed in the direction of C ... C or - in the case of moving slide 1 and brief release of the holding tongs reversal - in the direction of C ... C. The 10 by pushing by means of the adjustable incline of the guide track 2 corresponds to the ao transport or feed tongs 11 α or III b full diagonal cutting rows, so one drawn in the case of circular blanks. These transport tongs can be approximately at the angle α = 60 °. Carrier slide 1 or also independently of this

The carriage 1 is driven by means of the bearings. In the example of the cam after

radial control cam 3, which by means of the in Fig. 6 results in the sequence of movements of the invention

Point £ rotatably mounted rocker arm 5 used as the device according to the invention in the triple zigzag

is directed. The curve character is for the intersection that one curve revolution (equal to six

Point in time and the number of backward and forward 1 act times) corresponds to six circular cuts. Of the

Determining the steps of movement of the carriage 1. On the cam drive, the number of press strokes is im

Rocker arm 5 can be the size of the present case with a transmission ratio

set the desired or required step. 30 out of 1: 6 fixed.

The interaction of the above-described With increasing tape utilization, such as with benen device arises in the following motion quadruple zigzag cutting, the turning function is reduced dar: number of the drive cam for the step movement

When rotating the radial cam 3 by its width on Ve of the press stroke number. About the same

Axis G, the roller 4 of the rocker arm 5 runs on 35 senses, the switching sequence of the pliers behaves for the

the curved path. In Fig. 5 is the curved track pushing the belt after the width traveled,

at the point of contact H. The rocker arm 5 pen- Since the required step sizes for circular blanks

deit around its bearing point E and gives the cut both in the diagonal direction and in the

Carrier slide 1 via the adjustable bearing journal interposed feed (cf.

fen 6 the sliding block 7 as well as the groove track 8 40 drawings from the mathematical derivation) iden-

are a movement impulse in the curve-dependent Rieh- tisch, results in the case of round cuts

tion. The compressed air or hydraulic cylinder 9 provides the advantage of uniform setting values,

for constant frictional connection between roller 4 and course, the device can of course

venbahn. of the invention except with a radial cam disc

If the radial control cam is 3 - as in FIG. 6 works just as well with other suitable drives - For example, for cutting in threes such as controlled compressed air or hydraulic compartment zigzag designed, it has the slide 1 cylinders, hydraulic motors, electrical resp. operate over two step intervals in one movement of the electronic stepping mechanism or the like, left in the right rest position as well as - in the return without changing the principle of the invention itself

For this purpose 4 sheets of drawings

Claims (3)

2>, in which the punching tool is moved back and forth step by step by a carriage. The movement of the heavy punching tool * has 1. Zigzag cutting device for waste - but an impairment of the number of strokes result, poor cutting out of blanks or round blanks S With this device a round blanks is essential Tape material with a controllable indexing slide is required, which controls the tape run-off of the punching tool at different points, which is attached to a slide by the modes of movement feeding to a single punching tool, where necessary round blanks are attached to a delivery station, to feed them to a gripper transport system in the case of punching tools and tape feed devices, device can be moved relative to one another and the ι »When using a round slider Sinkers one in an optimally material-saving but the disadvantage that the optimally possible work selected Angle to the direction of belt conveyance The press speed is not fully utilized arranged row one after the other can be punched out and becomes. after further conveyance of the tape by a row die in the known zigzag cutting device rastermaß Anüeßend the plans of the 15 disadvantages occurring as a result of impairment of the following row one after the other in the opposite direction, the number of strokes and the working speed can be punched out to the previous row, thereby eliminating the present invention, their opening characterized in that one with the would essentially consist in a sta-tape feed provided carrier slide (1) stationary punching tool and omitting the Ronlängs at the material-saving angle a to the ao denschiebers with simple means and with high Belt conveying direction arranged guide track working speeds a triple or multiple (2) at an angle to the direction of belt conveyance in a straight zigzag cut. processing of the rows of boards back and forth step by step This task can be controlled according to the invention is movable. solves that a carrier provided with the band feed 2. Device according to claim 1, characterized in that the lateral movement of the carrier carriage (1) in tracks obliquely to the belt conveying direction in the direction of the row direction [CC or CC) a radial curve acting in rows of the blank rows back and forth step-by-step controllable direction of the guideways is displaceable. By arranging an inclined disk (3) in connection with a carrier slide connected to the belt conveying direction and mounted so as to be rotatable on one side, the blank slide can be dispensed with, since rocking lever (5) is provided. the circular blanks from the stationary punching tool now- 3. Apparatus according to claim 2, characterized in that the rocker arm (5) is punched with one always at the same point from the tape. By eliminating a circular blank roller (4), which is located on the peripheral slide, an optimal use of the outer cam path of the radial cam disk (3) of the press working speed is now possible,
shifts. According to another feature of the invention, as