DE1810480A1 - Circumferential cutting or sieving device - Google Patents

Description

PATENT LAWYERS DIPL-CHEM. DR. WERNER KOCH DR.-ING. RICHARD GLAWE DIPL-ING. KLAUS DELFS DIPL-PHYS. DR. WALTER MOLL HAMBURG MÖNCHEN

181-048G

2000 Hamburg 52 · WaltzitraB · 12 · Ruf 89 2255 8000 Munich 22 ■ Llebharrttrae · 20 ■ Ruf 22 «548

YOUR MESSAGE FROM OUR SIGN MONKS

A 96

CHARLES ROBINSON
Oldham ^ Lancashire ,, England

Circumferential cutting or sieving device.

The invention relates to a rotating cutting or sieving device.

Known devices of this type have cooperating revolving drums or rollers, one of which

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line-shaped ₍ carrying a cutting pattern forming strips of steel. The material to be cut or stamped is transported through the gap between the rollers and cut or stamped by the cutting pattern.

A disadvantage of this known device is that the entire role must be replaced, if a different cutting pattern is to be used. This implies that the number of existing interchangeable rolls must correspond to the number of different patterns that are to be cut with one machine. Because the roles are very expensive are, such an arrangement is no longer acceptable for economic reasons if a number of different Pattern is only used for a short term. To avoid this disadvantage, * '.- · ■ has already been suggested, detachable shapes with curved cross-cut - '- "- ■■ that can be attached to the roller surface. Although this is an improvement, Nevertheless, there are a number of undesirable disadvantages. For example, the curvature of the shapes- "Im ' essentially about 18o or a little over 18o °. Almost half of the roll surface can therefore not be used for cutting

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Perform operation, so that the device is uneconomical works and, in addition, due to excessive losses. is unsuitable if the material is fed continuously. Besides, the

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Size of the cutting pattern «swf- the roll size is limited, as it is impossible to use rollers of different diameters.

The invention aims to avoid or mitigate the disadvantages mentioned.

According to the invention there is a rotating cutting or sieving device with a driven roller or drum, which forms a gap with a mating surface, is created, that is to say the one larger in diameter designed as the roller sleeve is provided, which carries cutting and / or Siekenwerkzeuge and is removable is arranged on the roller that it can rotate with the roller.

at
As a result, it is advantageous to use the opposite surface as

Form counter roller and provide an adjustable bracket, attached to the rolling elements on arms on opposite sides of the roll

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and can be swiveled towards or away from the role. On the other hand, the bracket outside of the role .Stangen have the displaceable in a direction perpendicular to the roller axis and carry rolling elements to rest on the inner surface of the sleeve.

According to a further advantageous feature, the device according to the invention is characterized in that that the roller is held at one end in axially spaced bearings and at the other end runs in a support .15, which can be removed for pushing on or pulling off to allow the sleeve from this end.

The sleeve is preferably made of solid at least one end with a circumferential drive ring elastic material provided with a passing through the gap between the roller and the counter-roller Conveyor belt can be engaged so that the belt and the counter roller are in synchronism with the Roller are driven. The circumferential surface of the counter roller can be in the area below the ring.

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be roughened to improve the drive transmission.

Furthermore, according to the invention, a cylindrical sleeve for a circumferential cutting or Sieving device with a driven roller or drum that forms a gap with a counter surface, created that can be placed on the roll and carries cutting and / or Sieken tools. Preferably, the sleeve is at least at one end with a circumferential drive ring made of solid elastic Provided material that can transmit the drive to the surface of the counter roller in engagement.

In the accompanying drawings, embodiments of the device according to the invention are for example shown.

Fig. 1 shows a perspective view of a first embodiment of a circumferential cutting or Sieken device according to the invention.

Fig. 2 shows, on an enlarged scale, a perspective view from one end of the machine;

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with the cover omitted to reveal internal details.

Pig. J) shows, on an enlarged scale and in a perspective view, some details of the Pig device. 2.

Fig. 4 is a schematic side view a second embodiment.

FIG. 5 is a partially sectioned plan view of the embodiment of FIG. 4.

According to Figures 1 to 5, the device has an upper roller 5 and a lower roller 6, which sit on shafts 7 and 8, respectively. The shaft 7 is driven by an electric motor 9 via a chain drive Io powered. One end of the shaft 7 runs in axially spaced bearings, which sit in supports 12. The other end of the shaft is held by a support 15 which is removable is attached to the machine frame. The type of attachment of this support is explained in more detail below. A conveyor belt 16 runs between the

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both rounds and serves to to carry cutting material and convey it through the gap between the rollers.

A sleeve 17 is arranged on the upper roller 5, which carries a cutting grid 18 on its outer circumferential surface. The cutting pattern exists made of linear steel strips, cut into the desired Curved shape and screwed to attachments sitting directly on the sleeve surface. The sleeve carries welded end plates 19 and is held by rolling elements and against a Back and forth wandering secured relative to the roller 5. The rolling elements are designed as wheels 2o and sit on pivot arms 21 on opposite sides of the sleeve. To move your arms around hers Pivot axes are threaded rods 22 articulated on the machine frame. To increase the rigidity the arms are connected to each other on opposite sides of the device by cross bracing 2J tied together. The pivot points of the arms are chosen so that pivoting and adjustment of the arms regardless of the diameter of the sleeve leads to the fact that

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the wheels approximate the sleeve on a common Diameter, touch. However, if desired, the pivot points can and can be changed it is ensured that the wheels perform both a pivoting movement and a vertical movement, to touch sleeves of different thicknesses on a common diameter.

A circumferential drive ring 25 is formed on the outer surface of the sleeve in the region of each end attached to a hard fabric rubber compound. The rings rest on the conveyor belt 16 and tension insert it between the upper and lower rollers so that the belt and lower roller are in sync with the rotation ... of the ... top roller. This friction drive can be improved by having the surface of the lower roller in the area Provides knurling below the drive rings 25.

In order to pull the tube off the roll 5 and replace it with another tube, the support 15 is on the machine frame in a sliding guide 27 with

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inwardly inclined side surfaces 28 mounted. In addition, a pair of locking levers 29 are provided, which are attached to locking shafts 30. The locking shafts lie in grooves in the base plate the prop. How best from Pig. 3, each locking shaft has a flattened surface which is flush with the surface of the sliding guide when it, as shown on the left in Fig. 3, downwards is directed. In this position it is possible to pull off the support. Are the levers 29 in their Rotated locking position, the locking shafts lift the support a little so that its base plate against the Side surfaces 28 is set. In addition, there are end stops 33 on the locking shafts provided that extend downwardly beyond the slide 27 when the locking shafts are in their locking position. This will allow the support to be withdrawn from the machine frame prevented. The end stops release the sliding guide when the locking shafts correspond to the left Part of Fig. 3 take their open position.

If the support is removed, the sleeve must be lowered so that the end flange I9 on the

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The end of the sleeve that is opposite the end over which the sleeve is to be pulled off, the upper roller 5 is free. For this purpose, the shaft 8 of the lower roller is fastened in bearing blocks 35, which in guides J> 6 according to Pig. 2 can be raised and lowered. Raising and lowering is accomplished by turning handwheels 37 on either side of the device. In this way, the lower roller 6, the conveyor belt 16 and the sleeve 17 are lowered relative to the upper roller.

In operation, the motor drives the upper roller 5, which in turn drives the sleeve 17 and the lower roller 6 in synchronism. The material that is to be cut or sieved is passed on the conveyor belt 16 between the sleeve 17 and the lower roller 6 and comes to rest against the cutting tools. The type of cutting tool used and / or the distance between the sleeve and the lower roller is determined ¹ whether the cutting tools cut through the material completely or only provided with sieves. Since the entire circumferential surface of the sleeve, the diameter of which is determined by the length of the desired pattern, for

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Application can be continuous Carry out feed with negligible loss. The device can be used for cutting or sieving wallpaper, woven material, cardboard, plastic sheets or the like. To the Protection of the conveyor belt can be a cover made of suitable material, such as linen fabric, Cord or the like. Be arranged on the conveyor belt, so that the cutting tools only in the tissue, but not penetrate into the conveyor belt itself.

If another shape is to be cut out, the arms 21 are pivoted away from the sleeve. The locking levers 29 are then pivoted into their open position, and the handwheel JfJ at the same end of the device is rotated by a small amount, so that the tight connection between the base plate of the support 15 and the side surfaces 28 of the sliding guide 27 is released. The side support. can then slide freely in the machine frame. Then the handwheels j57 at both ends of the machine are turned in sequence to lower the roller 6, the conveyor belt and the sleeve so far that

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the sleeve can be withdrawn from the upper roller and another sleeve can be mounted on it. It takes place then the lifting of the lower roller, the insertion and locking of the side support 15 and the pivoting of the arms 21 until the latter rest against the new sleeve.

The embodiments according to FIGS. 4 and 5 differs from the arrangement described above in the manner in which the sleeve is relatively is supported to the upper roller. A pair of parallel bars 4o extend between the lateral brackets and is attached to these, for example screwed. The bars wear in near their ends transversely sliding slide bars 41 with wheels 42 .. The slide bars 41 can be in each any set transverse position can be locked, namely via screws 4j5, which through slots 44 go through the slide rods 41 and are screwed into the rods 4o. This way the actual Width of the framework, consisting of the rods 4o, the sliding rods. 41 and the wheels 42 changed will.

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If another pattern is to be cut, the end support becomes the end support after unscrewing the rods 4o 15 away. Then the slide bars 41 are laterally. moved inwardly to the wheels 42 from the sleeve 17 to solve. Since the sleeve is open at the side, the screws 43 can be accessed. The sleeve can then according to the embodiment described first lowered, withdrawn from the roll 5 and against a sleeve with a different cutting pattern and "φ if necessary, different diameter meters can be exchanged. Is the new case in its correct one If the position has been shifted, the lower roller, the conveyor belt and the core are raised the slide rods 41 moved outward until the wheels rest against the inner utafangement surface of the new sleeve. Finally, the rods 4o are attached to the side support 15 which has been reinserted.

In the embodiments described above, the entire area of the sleeve VJ is used, so that the material to be cut can be fed continuously without generating unnecessary waste. The sleeve can easily be replaced by a sleeve with different

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Lich cutting pattern and / or different diameter can be replaced, so that the cost of the acquisition of a large number of rolls can be saved. The cost of the pods are significantly below those for the roles. In addition, the weight of the sleeves is such that they can be without further can be moved by hand and thus screw jacks and the like are superfluous.

In the context of the invention, a large number of modifications are possible »For example, can the wheels 2o or 42 can be replaced by rollers which extend over the entire length of the sleeve.

the
Also, cross struts that connect the side adjustable support wheels 2o to one another in the first embodiment can, if desired, have a curved protective bar made of metal or the like. wear that extends over the sleeve.

The slide rods 41 in the second embodiment can, for example, via a rack and pinion drive at the same time and by .. · be shifted outwards and inwards by the same amount, over the

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Operation of a handwheel which is easily accessible outside the sleeve.

The material to be cut can also be supplied in plates and there is also the possibility of it is time to place the core on the lower roller.

Further modifications consist in driving both the roller and the * counter roller or none to drive the rollers and to effect the drive via the conveyor belt.

In the second embodiment, the upper roller can have circumferential grooves in its outer surface, engage in the circumferential webs or rings which are arranged inside the sleeve. The sleeve and the upper roller can also be connected to one another via a toothing, but to a lesser extent this increases the number of sleeve sizes that can be used and also makes them more expensive.

The rollers can be designed as hollow drums in order to save weight and costs.

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The conveyor belt 2L need not be between the ends of the upper and lower rollers or between the drive rings 2o and the lower roller can be clamped, but can also be driven independently will. There is also the option of leaving out the lower roller and leaving the gap only between the to form the upper roller and the conveyor.

Retaining pins can be placed between the cutting tools be inserted into the surface of the sleeve. To grasp the material to be cut and form-fit to guide through the gap. In addition to the cutting tools, elastic. Pillows can be arranged around the Loosen material from the cutting tools when it has migrated through the gap.

The drive arrangement can be modified, for example, that one at the end of the roller shaft arranges a worm and connects the motor via a V-belt drive with a switchable gear.

In addition, the manner in which the end support 15 is released and removed can be independent

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vary from the described embodiments. For this purpose, a squat electric motor can be provided, which has a push button and upper and lower limit switch is controlled.

The sleeve can consist of two half-cylinder parts that are hinged to one another or be screwed together around the roll,

so that the sleeve can be easily removed, ™

without pulling it off from one end.

The inner surface of the sleeve and / or the outer surface of the upper roller can be lined with rubber or other material with a high coefficient of friction ^^ öie to facilitate transmission of the driving force. A / support of the sleeve can also be dispensed with, although a support has advantages. M.

The upper roller and the sleeve do not have to be in contact with their circumferential surfaces, but rather the roller shaft may be vertically adjustable, with each sleeve then having a row of spaced apart arranged bearings, so that sleeve and roller

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are coaxial with each other. The position of the roller then changes depending on the diameter of the sleeve.

The bearing of the lower rbIle can be opened with a push button be lowered * by means of a reduced electric motor instead of the handwheels 37 * who works between upper and lower limit switches,

The cutting pattern may be replaced by a single cutting blade * extending parallel to the sleeve axis to continuously supplied sheet material., Which is, for example, directly from a calender to cut _s into pieces "Also, other arrangements of one or more cutting and / or * Siekenmesser Find use.

For those skilled in the art, there are further modifications within the scope of the invention readily apparent.

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Claims (1)

Claims 1. Rotating cutting or sieving device with a driven roller or drum, which is ir.it a Opposite surface forms a gap ", marked by means of a sleeve (17) with a larger diameter than the roller (5), the cutting and / or sealing tools (18) and is detachably arranged on the roller (5) in such a way that it can rotate with the roller. 2. Apparatus according to claim 1, characterized in that the roller (5) and the sleeve (17) are arranged so that the outer surface of the roller contacts the inner surface of the sleeve. 5. Apparatus according to claim 1 to 2, characterized by an adjustable bracket (2o, 21) which rests on the sleeve (I7) in order to relative to the Support roller (5) su. - 19 - 90982670253 4. Apparatus according to claim 3 * thereby characterized in that the holding device Has arms (21) on which rolling elements (2o) sit and which are on opposite sides of the Roller (5) are attached so that they are pivoted towards the roller and away from the roller can. 5 »Device according to claim K, characterized in that the arms (21) are pivotally attached in such a way that their adjusting pivoting movement brings the rolling elements (2o) to rest on the sleeve approximately on a common diameter regardless of the size of the sleeve. 6. Apparatus according to claim j5, characterized in that g e - kl e η η ζ e i c h η e t that the bracket slide bars (41) outside of the role (5) which are displaceable perpendicular to the roller axis and rolling elements (42) for abutment on the inner surface of the sleeve (17) wear. / 7 · Device according to claim 1 to 6, characterized characterized in that the mating surface • - 2o - 909826/0253 is designed as a counter roller (6). 8. Device according to Anspruoh 7, characterized gekennzei c h η e t that the role (5) above the counter roller (6) and that a conveyor belt (16) is provided, which durah the gap between see the reels running and the material that is cut or is to be transported through it. 9. Apparatus naoh claim 1 to 8, characterized in that the roller (5) at one end in axially spaced apart Bearings (12) is held and at the other end runs in a support (15) which can be removed, to allow the sleeve (17) to be pushed on or removed from this end. 10. Device according to Anapruoh 9 * thereby characterized in that the support (15) is arranged displaceably in a sliding guide (27) in the machine frame, and that releasable locking means (29 to 55) are provided to counter the support (15) set a slide or release it for weight loss. - 21 - 9098 26/02 53 11. The device according to claim 9 to lo, characterized by a device (j55 to 37) ) via which the gap between the roller (5) and the mating surface (6) can be enlarged in order to pull off the sleeve (17) from one end to ease off » 12. The device according to claim 8 to 11, characterized in that the counter roller (6) with its shaft (8) rotatably runs in vertically displaceable bearings in the machine frame. So that a vertical movement of the bearings, the counter roller (6) j, the conveyor belt ( 16) and the sleeve (17 ) lowers relative to the upper roller (5) « 15, device according to claim 1 to 12, characterized in that the sleeve (17) at least at one of its ends carries a circumferential jtatpietosrlng (25) made of solid elastic material in order to apply driving force to the opposing surface '14. Device according to claim Ij5 * thereby characterized in that the mating surface - 22 - 909-826 / 0283 (6) in the area of the ring (25) is roughened to to facilitate the transmission of the driving force. 15 .. Component with a cutting and / or beading tool for a circumferential cutting or sieving device with a driven roller or drum that forms a gap with a counter surface, characterized in that the component is a cylindrical component that can be mounted on the roller (5) Sleeve (17) is formed. 16. Component according to claim 15 for a rotating cutting or sieving device, characterized characterized in that the sleeve at least at one of its ends a circumferential drive ring (25) made of solid elastic material carries to transmit the driving force from the roller (5) to the counter surface (6). 909826/0253