DE104030C - - Google Patents

Description

imperial

PATENT OFFICE.

PATENT LETTERING

CLASS 55: Paper manufacture.

ALFRED GEORGE BROOKES in LONDON. Guide arms on calender rolls.

Fatentirt in the German Empire from March 16, 1898.

The calenders usually consist of a number or a set of superimposed, at the ends of mounted rollers, between which the paper is guided back and forth. Suitable guide arms prevent which press against the various rollers, so that the paper is a single roller wraps around instead of going over to the next roller. Usually these are guide arms attached at the ends to bearing journals, which themselves form part of the arms form, or hinged on pegs directly connected to the arms, thus the latter can be approached or removed from the rollers.

If the guide arms are connected directly to the pegs, they cannot be in axial or straight direction, and if the rollers as a result of a Should lower bearing pressure at one end more than at the other, the guide arms would only come into contact with one of them, namely with the deepest end of the rollers, and thus not in the right one Way to act on the paper.

In order to avoid the abovementioned problems, the ends of the guide arms attached to connectors that not only allow lateral movement of the whole guide arms on the reels towards and away from them, but also make it possible to that during this movement the arms adjust themselves in the axial direction in such a way that they touch the rollers along their entire length. To achieve this, the Guide arms are attached at each end to one or more joints, which in turn are attached to Straps are attached.

On the accompanying drawings is
Fig. Ι a front view of a calender,
Fig. 2 is a section of the same after xx,
3 shows an enlarged individual view of a guide arm and its fastening device.

FIGS. 4 and 5 are sections seen to the right and left from the line yy of FIG.

Fig. 6 is a section through a calender with another embodiment of the guide arms and

7 is a front view of a modified embodiment of the fastening device for the named arms.

To accommodate the bearing shells a ^{1 of} the calender rolls a ² in the frames AA attached to the foundation plate A ¹ , slots a are provided which are closed off by the cover a ^z. According to FIGS. 2 to 5, the guide arms D have a V-shaped shape, engage with their ends d on the calender rolls and are with their cast pieces d ¹ at d ² on the at d * on the frames A or their plates d ^x (Fig. 2) hinged links d ³ attached. Furthermore, the toggle levers d ^ä , which are also fastened to the frames A or the plates d ^x by bolts d ^1, are articulated on the cast pieces d ^l at d ^h , the bent arms d ^{s of which are used} to fasten the springs described in more detail below.

Because the guide arms are articulated to the frame by the links d ^s d ^e , they can be opened to the side

move the reels; they can also be moved in the axial direction. With such a fastening method, one end of a guide arm of the relevant Roller can be brought closer than the other, without twisting any machine parts, during a twist and bending occurs when a pin-attached guide arm of the roller is attached one end is brought closer than the other.

According to FIGS. 3 to 5, the guide arms are pressed against the rollers by helical springs s. These springs rest in the bushes e attached to the plates d ^{x at e 1} and lie against the disks e ' ^{2 screwed onto the lever e 3} . These levers e ³ are surrounded by springs s and are bifurcated ^{at e 4} to accommodate the curved lever arms d ^s. In these forks teeth e ^{5 are} provided, which engage in grooves e ° of the arms d ^& to fix the lever e ³ .

When starting the calender, it is advantageous to let the guide arms press more strongly against the rollers than later, and therefore the levers e ^{3 will} initially be set in those grooves e ^e furthest from the pivot point of the arms d ^s , around the springs s to attack the largest lever arms. If the guide ^{arms were continuously pressed 1} with this pressure on the rollers, the latter would soon heat up; For this reason, the levers e ³ are pushed inwards after a while so that the teeth e ^{5 come into the grooves e 6} located next to the pivot point of the arms d ^s , whereby the pressure of the guide arms on the rollers is reduced. However, this pressure must be so great. that the paper is properly fed through the calender after it has started to work in the proper manner. The arms d ^{a, which} are slightly inwardly bent at the end, are provided with stop lugs d ⁹ , so that the levers e ³ , when they are turned outward, slide down to these lugs Fingers f provided guide arms on the rollers completely stops.

So far, the guide arms as a whole could not be seen laterally, i. H. after the calender rolls move towards, still adjust automatically depending on the change in position of the latter; furthermore, one has so far under the action of a spring, curved arms through which the Pressure of the guide arms on the rollers is changed, can not use. From this It is clear that all the embodiments of the guide arms, which as a whole are laterally so can be shifted so that they always automatically move into the correct position adjust the calender rolls if the position of the latter changes, in the frame of the present invention, which is also the case with the embodiments shown in FIGS. 6 and 7 the case is.

The upper guide arms D (Fig. 6) are hinged at d ' ² to the links d ^s and these in turn at d ^l to the plates d ^x , while the lower guide arms according to FIGS. 6 and 7 are provided with lugs c , which in slide the guides c ^{1 of} the plate d ^x equipped with friction rollers or rollers c ^2. In both embodiments (FIG. 6), these guide arms have adjustable pins g which are provided with adjusting disks g ¹ and nuts g ' ² and are arranged in the sleeves g ^{% of} the levers g · ⁴ . The latter are ^{adjustably fastened in slots c 3 of} the plates d ^x and provided with a handle g ⁵ for moving this lever g * . By instead of the springs s g in the foregoing embodiment on the pin springs disposed s ¹ are the approaches g ¹ g of the sleeves ^s pulled the trigger, whereby the guide arms with the help of the rotatable and k provided with counterweights, the pins c ⁴ comprehensive hook k ¹ are pressed after the calender rolls.

If the hooks k ^{1 of} the upper embodiment (Fig. 6) are attached to the pins c ⁴ , the guide arms protrude far beyond the pin d * , whereby, as a result of the arrangement of these parts, lifting of the weights k causes the guide arms to swing back automatically from the Causing rolling away. The arrangement of the two middle guide arms is such that when the hook k ^{1 is switched} off, they do not move away from the rollers, but rather onto the rollers, which is effected by the weights of the hooks and the handles.

During the operation of the calender, the adjusting rings g ¹ are adjusted so that the springs s ¹ press the guide arms resiliently against the rollers when the hooks k ¹ are hooked onto the pins c ^4; if a sheet of paper jams or ripens, the handles g ⁵ and the weights k are lifted up by a single movement of the hand, as a result of which the guide arms are completely removed from the rollers. As long as the hooks k ^{l are} not hooked, the springs s ^l do not tend to press the guide arms against the rollers. A sheet of paper that has gotten into disarray can thus be easily and quickly removed from the rollers and a new one inserted, whereupon the guide arms are brought into their correct working position without great inconvenience.

The guide arm D ¹ for the lowermost roller in Fig. 2 is supported from below, so it is

not hung like the rest of the arms, and is supported by the limbs d ¹⁰ d ⁿ . The latter d ¹ ' ² is connected at <i ¹³ to the curved arm d ^u , which is moved by the rod e ^3x which is articulated at e ^{lx and} slides in the sleeve e ^x and is under the action of a spring.

Claims (1)

Patent Claims: Guide arms on calender rolls, characterized in that the arms on the one hand movable with the intermediary of links with the machine frame or with at this located plates are connected in such a way that the guide arms on both ends either at the same time or one end independently of the other can be moved inward to open their entire length with the leading edge in engagement with the corresponding calender rolls to remain if these move upwards at one or both ends. An embodiment of the guide arms according to claim i, characterized in that the guide arm (D) is articulated at each end to a swingable lever (d ³ ) and is articulated to a toggle lever (d ^s d ^s ) , which by virtue of a spring action, The V-shaped guide arm (D) at each end independently of the other depending on the setting in a swingable sleeve (e) sliding and with a nose (e ^) adjustable in notches of the toggle lever (d ⁸ ) engaging lever (e ³ ) of the toggle lever (d ^a d ^s ) with stronger or weaker pressure against the calender roll (Fig. 3 and 4). 3. An embodiment of the guide arms according to claim 1, characterized in that the at each end to a swingable lever (d ³ ). articulated V-shaped arm (D) is connected to a spring-loaded rod (g) ^{which slides in a} sleeve (g a) that regulates the spring pressure and is articulated on a rocker arm (g * ) that can slide in a vertical plane, while the Lever (g *) by a hook lever (k ^l ) provided with a counterweight (k ) takes place (Fig. 6 above). 4. An embodiment of the guide arms according to claim 1, characterized in that the V-shaped arm (D ) is slidably and rotatably mounted at each end with a projection (c) in the guides (c ^l ) equipped with friction rollers (c ^% ) and is influenced by a rod (g) under spring pressure according to claim 3 (Fig. 6 below). 1 sheet of drawings.