DD301717A7 - Device for peeling off the cover layer of conveyor belts - Google Patents

Abstract

The invention relates to a device for peeling the outer layers of Stahlseilfördergurten. The object of the invention is to increase the cutting performance of the device, to improve the quality of the cut surface and to make the peeling of a cover layer at the end of the belt with the device. The device should run smoothly despite increased cutting frequency and can adjust the peel thickness arbitrarily during operation. According to the invention, the device is structurally designed so that an oscillating knife peels off the top layer on the steel cord layer of the conveyor belt in an adjustable thickness. Fig. 2 {conveyor belt; steel cord; Continuous connection; Peel off the topcoat; Cutter}

Description

Field of application of the invention

The invention relates to a cover layer cutting device for the preparation of endless connections of conveyor belts, preferably of steel cord belts without cross armoring.

Characteristic of the known technical soundings

Cover layer accelerators are described by DD-PS113876; 139546 and DD-PS 228213 and known from practice.

These known cover layer cutting devices consist of a device frame which receives a pressing and a driving roller. An oscillating knife or rotating band knife peels off the top layer during device driving.

These coverslippers have suffered disadvantages in application practice.

Before the device is used, the cover layer must continue to be applied manually in strips corresponding to the working width of the device so that it can be pressed between the pressing roller and the driving roller.

The previous arrangement of the knife and the adjustment of the peel thickness has led structurally to partial cutting of the steel cables. Premature knife wear, knife breaks and shock loads on the drive unit have led to high Warnings · and maintenance costs.

Circumferential band knives have not prevailed in practice for this purpose in the experimental stage. Another disadvantage was that, in addition to the rulatively high time required for peeling, the cutting speed did not meet the practical requirements. Attempts of the operator to increase the cutting speed by delivering higher feed forces led to uneven running of the device and damage to the feed mechanism.

Object of the invention

The aim of the invention is to reduce the cost of maintenance of the device and the separation of the cover layer from the conveyor belt.

Explanation of the essence of the invention

The invention has the object of providing a device for separating the outer layers of Stahlseilfördergurten such that with reduced net mass and higher cutting speed over known devices, the device operates quietly and stably.

By a zwickentsprechende arrangement and design of the knife guide the peel thickness should be adjustable and precluded a cutting of the steel soite and the peel width can be selected in a diagonal.

According to the invention the object is achieved in that a cross member is mounted in the known equipment frame with pressure and Vortriebswalze, which receives a fixed blade guide and a knife drive unit. The knife drive unit consists of a motor with a cranked drive shaft and two transversely opposite to the feed direction moving crossheads.

In the basic knowledge of the engineer 9, edition S.412ff "in particular S.426 figure 155, the speed and acceleration of the crosshead depending on the path of the piston rod is shown.

A characterization of the pushing movement or swinging movement takes place starting from S.690ff., In the Taschenbuch Maschinenbau 1/11

3rd edition, this particular on p. 698 Figure 6.89 shows the combination of a revolving crank loop and cross thrust crank. The influence on the mass balance to achieve a relatively stable and quiet operation of the device is shown, ibid. P. 696 application group (6.31). Here it is described that by the "series connection of two universal joints unevenness can be increased or canceled. (Fig. 6.85) ", with a reference to the use of commercially available universal joints (6.12, p.225 to 227 and 6.18, pp. 218 to 221).

In Dubbels Taschenbuch Maschinenbau by Springer Verlag 1963,12. Edition Part I, starting from page 804, the gear technology, rotary thrust section is described, in particular applies p. 808 point b) Thrust crank drive.

At hut, Des Ing. Taschenbuch Maschinenbau part A from p. 586 are piston rod with crosshead and especially in part b)

the shape of the crosshead with the various crosshead types described.

The head tube located in the forward drive direction is rigidly connected to a knife holder, which is a replaceable knife

positively receives.

The inner crosshead is the same as mass car. Arched guide plate is arranged between the drive roller and the cross member. Ausftihrungsbelsplat The invention will be explained in more detail below on a / Vusführungsbeisplel. In the accompanying drawings show

1: a plan view of the device FIG. 2: the section A-A according to FIG. 1

All functional units of the device are attached to the frame 1. Between the two side walls of the frame 1 is the

box-shaped cross member 2 stored. On it, the drive motor 3 of the knife, the thrust crank 4 based

Mass balance and the knife guide 5 from. The knife β is connected to the outer crosshead of the slider crank drive over the Knife holder 7 directly connected and thus performs the oscillating cutting movement. By the mass of the inner,

opposite crosshead mass balance of all oscillating masses is achieved.

With the feed unit is the peeling process, the function of clamping the cover layer 16, the feed of the device

and the setting of the peel thickness.

Between the two side walls of the frame are the driven feed roller 8 and, radially displaceable, the Pressure roller 9 relocated. When peeling the cover layer 16 of the steel cord 17 slides on the curved guide plate 10th

along and is pushed between the corresponding wide open pair of rollers. About two hand spindles 11 is now the

Pressing roller 9 delivered and the cover layer 16 held between two rollers. Thus, the device takes over his Feed independently. In addition, thereby obtains the top layer 16 required for the cutting bias. The drive of the feed roller 8 is effected by a geared motor 12 via a chain drive 13 and a chain countershaft 14. The thickness of the cover layer 16 is adjusted with the two hand spindles. By the support roller 18, the device is held and guided in a horizontal position.

Documents contemplated: DD-PS113876 DD-PS 139546 DD-PS 228213

- Basic Knowledge of the Engineers Author Collective, 9th ed., Leipzig: Fachbuchverlag 1974, S.412-426

- Taschenbuch Maschinenbau, 3.stark. Edition., Bd. 1/11 Basics, Berlin: Verl. Technik 1975, p.696, p.225-227, p.218-221

- Dubbels Taschenbuch für Maschinenbau, Berlin: Springer, 1963, p.804, p.808,

- Hut, 28.neubearb. Aufl., Part A. Mechanical Engineering, Berlin: Ernst u. Son 1954, p.586

Claims (2)

Apparatus for peeling off the cover layers of conveyor belts, consisting of a machine frame, a vertically adjustable roller block with pressure and advancing roller, a reciprocating knife and separate drives for this knife and the propulsion of the device, characterized in that a in the equipment frame ( 1) mounted cross member (2) a fixed blade guide (5) and a knife drive unit consisting of a motor (3) with cranked drive shaft and two transversely to the direction of advance in opposite directions moving crossheads, receives, with the outside in the drive direction crosshead a knife holder ( 7) is rigidly connected, on which a replaceable knife (6) is arranged positively, and the inner crosshead serves as mass balance. For this 2 pages drawings