DD232894A1 - DRIVE FOR NONSTOPROLL VEHICLES IN BOW AND BOW MACHINES - Google Patents

Abstract

The invention relates to a drive for Nonstoprollwagen bow-bending and sheet-processing machines for temporarily picking up the ejected from the machine sheet by means of a retractable Nonstoprollwagens. The object of the invention to provide a drive for nonstop dolly on bow- and bow-processing machines, which allows low acceleration with gleichfoermigen kurzhubigem drive and almost play-free drive links, is achieved by two four joints are arranged one behind the other, the drive rocker of the first four-bar linkage Geradschubeinheit as a mechanical drive source and a toothed segment which is kaemmend with a arranged on the trolley drive shaft pinion engaged, the output rocker of the second four-bar linkage is associated.

Description

7EB Kombinat Polygraph "Vierner Lamberz" Leipzig

7050 Leipzig

Leipzig, 14-12.12.1984

title

Drive for non-stop trolleys on sheet-fed and sheet-processing machines

field of use

The invention relates to a drive for non-stop rolling trolleys on sheet-fed and sheet-processing machines for temporarily picking up the sheets ejected from the machine by means of a retractable nonstop trolley.

Characteristic of the known technical solutions

From DD 93 351 a drive for Honstoprollwagen bow-bending and sheet-processing machines is known · The non-stop cart consists of carrying rollers, which are connected by connecting links articulated. The idlers are stored on both sides, guided in the drive wheel and supported on their tread.

0 7

The Nonstoprollwagen is retracted in the Bogenablegebereioh the machine by the drive wheel is rotated by a drive motor in rotation. Here, the Nonstoprollwagen with the support rollers, which partially engage in the deflection in the recesses of the drive wheel, rotated in a corresponding sighting. The sheet to be deposited during the singeing process, triggered by the drive motor, is lifted onto the non-stop trolley by the inevitable rotation of the (idler rollers.

Disadvantages of this device are that the Rollobewegung must be braked by means of a drive motor in the end positions.

Short braking distances cause large forces, which leads to wear on drive elements, roller blind elements and the guideways of the nonstop trolley.

Furthermore, the sum of all bearing and transmission element plays additional shocks when starting and braking.

Object of the invention

The aim of the invention is to provide a drive for Fonstoprollwagen bow-bending and sheet-processing machines, which works as possible wear and low maintenance, especially at high machine speeds.

Object of the invention

The object of the invention is to provide a drive for nonstop dolly on bow- and bow-processing machines, which allows low acceleration values with uniform kurzhubigem drive and has almost backlash-free drive links.

Essence of the invention

According to the task of the invention to provide a drive for Honstoprollwagen bow-bending and sheet-processing machines, the support rollers of Nonstoprollwagens according to their distance from each other, their shape and dimensions in the recesses of the drive wheel, which is at the same time Trolley drive shaft, and the drive wheel via a mechanical Drive source is achieved by two "four joints are arranged one behind the other, wherein the drive rocker of the first four-bar linkage a Geradschubeinheit as a mechanical drive source and a toothed segment, which meshes with a arranged on the Hollwagenantriebswelle pinion, the drive rocker of the second four-bar linkage is assigned. The drive rocker and the coupling of the first four-bar linkage are arranged in the retracted state of the nonstop trolley approximately in the extended position.

The drive rocker and the coupling of the second four-bar linkage are arranged in the extended position of the Fonstoprollwagens in the extended position.

Furthermore, the center of the pitch circle diameter of the toothed segment is arranged at a greater distance from the toothing as the pivot point of the toothed segment.

The advantage of this drive is that with uniform short-stroke drive high input and Ausfahrgeschwindigkeiten of Nonstoprollwagens be achieved at low acceleration and deceleration values.

Exemplary embodiment

Reference to the embodiment, the invention will be explained in more detail.

The accompanying drawing shows the side view of the nonstop trolley with drive.

The drawing shows the nonstop trolley with the printed sheet 1, the grippers 2, the stack 3 and the carrying rollers of the honing stand trolley ·

The drive for the retraction and extension of the lionstop roll trolley via a Geradschubeinheit 5 »acting on two consecutively arranged four joints (6.1, 8.1, 9 · 1, 6.2, 8.2, 9.2) acts. The drive rocker 6.1 of the first four-bar linkage (6.1, 8.1, 9 * 1), which introduces the movement, is designed as a double lever and is rotatably mounted in the pivot point 7 · 1, one end with the piston 5 · Ί of the straight drive unit 5 and the other end with the Coupling 8.1 is movably connected. The output rocker 9 »1 of the first four-bar linkage (6.1, 8.1, 9 · 1) forms an angle lever with the drive rocker 6.2 of the second four-bar linkage (6.2, 8.2, 9 · 2), which are rigidly connected to each other and pivotable at the pivot point 7.2 , Furthermore, the output rocker 9 · 2 of the second four-bar linkage (6.2, 8.2, 9.2) rotatably mounted at the pivot point 7 · 3. The output rocker 9-2 is designed as a double lever, wherein a support arm is fixedly connected to the toothed segment 10. The sector gear 10 is engaged with the teeth of the pinion 11, which is fixedly disposed on the outer end of the Sollwagenantriebswelle 12, in engagement. The other transmission elements of the first and second four-bar linkages (6.1, 8.1, 9.1, 6.2, 8.2, 9.2) are movably connected to one another in a known manner. The two four-bar linkages arranged one behind the other are coordinated so that in each end position, once in the extended and Once in the retracted state of Fonstoprollwagens, the drive rocker 6.2 and the coupling 8.2 or the drive rocker 6.1 and the coupling 8.1 reach the extended position or almost take.

The support rollers 4 of the ITonstoprollwagens are the recesses of the drive wheel 13 which is fixedly arranged on the trolley drive shaft 12 assigned. The drive wheel 13 is formed so that it consists of two discs provided with! Tuten, which are arranged at a distance from the width of the Honstoprollwagens. The guidance of the ITonstopwagen is carried out in a known manner.

The operation of the device is the following:

The printed sheets 1 are transported by the grippers 2 for display and stored on the stack 3. If the stack 3 has reached the required height, the stack is lowered, retracted the Konstoprollwagen and the printed sheets 1 stored on the support rollers 4- nonstop roll trolley · The retracting of the honing trolley is carried out at full machine speed and must therefore take place very quickly, so this is not collided with the falling, arched downward arch.

If the Ilonstoprollwagen be retracted into the stack, a given pulse triggers the retraction of the Eolbens 5 · 1 of the Geradschubeinheit 5 from. The movement of the gear members takes place in the direction indicated by arrows sighting, the gear members take the position shown as a dash-and-dash line ·

The drive rocker 6 · 1 and the coupling 8.1 of the first four-bar link 6.1, 8.1, 9 · 1 are almost in the extended position. Since in each end position of one of the two four joints 6.1, 8.1, 9 · 1 or 6.2, 8.2, 9 · 2 between drive rocker 6.1 / 6.2 and coupling 8.1 / 8.2, the stretched position or approximately this occupies the start of movement is very soft. Same conditions apply to the end of the movement. The required force and thus the load of the gear members is low, so that the entire device is wear and maintenance. By the rotational movement of the output rocker 9 * 2, the toothed segment is inevitably rotated in the direction shown by arrows. The meshing with the toothed segment 10 pinion 11, which is fixedly disposed on the Eollwagenantriebswelle 12 is also offset by the meshing of the teeth of the toothed segment 10 and pinion 11 in rotation. At the same time, the trolley drive shaft 12 and the drive wheels 13 fixedly mounted on it move. The rotation of the drive wheels 13 causes the carrying rollers 4 engaging in their recesses and thus the nonstop trolley to be pushed into the sheet-laying area. The toothing of the toothed segment 10 is formed so that the backlash goes in both end positions towards 0

and between them has the normal backlash. The advantage of this design is that no jamming of the teeth occurs or no shock and jerky loads, as with excessive backlash, occur · The extension of the Uonstoprollenwagens takes place in reverse order, with drive wheel 13 »Trolley drive shaft 12, pinion 11 and Turning the toothed segment 10 in the opposite direction, the second and first Yiergelenk take the position shown as a solid line again and the piston 5 · 1 of the Geradschubeinheit 3 is retracted ·

In the extended position of the Fönstoprollwagens take drive swing 6.2 and coupling 8.2 of the second Yiergelenks 6.2, 8.2, 9.2, the extended position.

The movements are all carried out in the opposite direction of the arrow ·

Claims (4)

-τ- Claim 1. drive for Fonstoprollwagen bow-bending and sheet-processing machines, the support rollers of the Uonstoprollwagens according to their distance from each other, their shape and dimensions in the recesses of the drive wheel, which is also rolling carriage drive shaft, engage and the drive wheel is driven by a mechanical drive source, characterized in that two animal joints (6.1, 8.1, 9.1; 6.2, 8.2, 9.2) are arranged one behind the other, wherein the drive rocker (6.1) of the first four-bar linkage (6.1, 8.1, 9.1) comprises a straight-ahead unit (5) as a mechanical drive source and a toothed segment (10), which meshes with a on the Hollwagenantriebswelle (12) arranged pinion (11) is engaged, the output rocker (9.2) of the second four-bar link (6.2, 8.2, 9.2) is assigned. 2. Drive according to item 1, characterized in that the drive rocker (6.1) and the coupling (8.1) of the first four-bar linkage (6.1, 8.1, 9.1) are arranged in the retracted state of the Fonstoprollwagens approximately in the extended position. 3. Drive according to item 1, characterized in that the drive rocker (6.2) and the coupling (8.2) of the second four-bar linkage (6.2, 8.2, 9.2) are arranged in the extended state of Honstopröllwagens in the extended position. 4. Drive according to item 1, characterized in that the center of the pitch circle diameter of the toothed segment (10) is arranged at a greater distance from the toothing, as the pivot point (7.3) of the toothed segment (1Q). rH «rr <j 1 Saita Zaichnungen