Conveying device with an extensively extended conveying element

Abstract

A conveying device with a revolvingly led, extensively extended conveying element, which forms a conveying section with a conveying surface, and a return section, which is arranged below the conveying section. The conveying element is deflected in each case in two head-end regions, which are spaced from one another along the conveying direction. A wiper device for wiping foreign objects led along on the conveying surface of the conveying element is arranged in the front head-end region, in which the conveying element is deflected from the conveying section into the return section. The wiper device includes a wiper unit with a receiving blade, which runs transversely to the conveying direction, as well as a wiper blade, which is mounted on the wiper unit and forms a flexible wiper lip projecting toward the conveying element beyond the receiving blade.

Claims

1. A worker-rider belt with a revolvingly led, extensively extended conveying element, which forms a conveying section with a conveying surface for a worker, and a return section arranged below the conveying section, and the conveying element is deflected in each case in two head-end regions, which are spaced from one another along the conveying direction, wherein a wiper device for wiping foreign objects led along on the conveying surface of the conveying element is arranged in a head-end region, which is at the front in the conveying direction and in which the conveying element is deflected from the conveying section into the return section, and the wiper device comprises a wiper unit with a receiving blade running transversely to the conveying direction as well as a wiper blade, which is mounted on the wiper unit and which forms a flexible wiper lip projecting towards the conveying element beyond the receiving blade, wherein the receiving blade is designed as a vibration conveying element and mounted on the worker-rider belt in a manner such that vibrations, which are triggered by the movement of the conveying element or a drive motor, are transmitted onto the receiving blade, such that foreign objects which are transported from the conveying element via the wiper lip onto the receiving blade, are moved on the receiving blade towards the head end due to vibrations of the receiving blade.

2. The worker-rider belt according to claim 1, wherein the wiper unit forms a receiving groove, in which the wiper blade via a holding section is mounted with play along an axis transverse to the conveying surface.

3. The worker-rider belt according to claim 2, wherein the wiper blade can be inserted into the receiving groove.

4. The worker-rider belt according to claim 1, wherein the receiving blade forms a receiving surface that is inclined dropping in an oblique manner in the conveying direction.

5. The worker-rider belt according to claim 1, wherein the holding section and the wiper blade are arranged at a level below the conveying surface.

6. The worker-rider belt according to claim 1, wherein the wiper is formed from plastic.

7. The worker-rider belt according to claim 1, wherein the wiper lip is bent upwards.

8. The worker-rider belt according to claim 2, wherein the wiper blade in the receiving groove is secured against sliding out of the receiving groove via securing means.

9. The worker-rider belt according to claim 2, wherein the receiving groove is arranged below the receiving surface of the receiving blade and below the receiving blade.

10. The worker-rider belt according to claim 1, wherein the wiper device comprises a capture container with a capture opening wherein the capture container is arranged, preferably in a releasable manner, at the head end of the worker-rider belt, wherein the capture opening connects to the receiving blade.

11. The worker-rider belt according to claim 1, wherein the conveying element is designed in a multi-part manner.

12. A worker-rider belt with a revolvingly led, extensively extended conveying element, which forms a conveying section with a conveying surface, and a return section arranged below the conveying section, and the conveying element is deflected in each case in two head-end regions, which are spaced from one another along the conveying direction, wherein a wiper device for wiping foreign objects that are led along on the conveying surface of the conveying element is arranged in a head-end region, which is at the front in the conveying direction and in which the conveying element is deflected from the conveying section into the return section, and the wiper device comprises a capture container that is for receiving wiped-off foreign objects and is releasably attached at the front head-end region.

13. A method for separating foreign objects from a conveying surface of a worker-rider belt with a wiper device according to claim 1, comprising the steps of: wiping foreign objects by way of the wiper blade from the conveying surface of the conveying element, which is moved in the conveying direction towards the wiper blade and at the wiper blade downwards past the wiper blade; conveying the foreign objects further from the wiper blade onto the receiving surface of the receiving blade by way of an oscillating movement of the wiper blade; conveying the foreign objects further in the conveying direction on the receiving surface by way of vibration of the receiving blade.

14. The method according to claim 13, wherein the wiper device comprises a capture container with a capture opening that connects to the receiving surface in the conveying direction, and the foreign objects are conveyed on the receiving surface in the conveying direction from the receiving surface into the capture container by way of vibration of the receiving blade.

15. The method according to claim 13, wherein the capture container is releasably attached on the worker-rider belt, and the capture container is removed from the worker-rider belt for emptying, and, after emptying, is re-attached onto the worker-rider belt.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The subject-matter of the invention is hereinafter explained by way of an embodiment example which is represented in the accompanying drawings. In each case are schematically shown in:

(2) FIG. 1: a perspective representation of a wiper device according to the invention;

(3) FIG. 2: a perspective representation of the capture container of the wiper device according to FIG. 1;

(4) FIG. 3: a perspective representation of a cover plate with a transverse bar of the conveying device;

(5) FIG. 4: a lateral view of the wiper device according to FIG. 1;

(6) FIG. 5: a plan view of the receiver blade with an alternative fastening of the wiper blade;

(7) FIG. 6: a lateral view of the wiper device with a further alternative fastening of the wiper blade;

(8) FIG. 7a-7c: a lateral view of the conveying device with a wiper device, from the head-end region;

(9) FIG. 8: a plan view of a production line with worker-rider belts; and,

(10) FIG. 9: a lateral view of a worker-rider belt according to FIG. 8, from the head-end region.

DETAILED DESCRIPTION OF THE INVENTION

(11) Basically, the same parts in the figures are provided with the same reference numerals.

(12) FIG. 1 shows an embodiment of a wiper device 20 according to the invention. The wiper device 20 includes a wiper unit 21 with a receiving blade 22 that forms a plane receiving surface 28. The receiving blade 22 is connected to a transverse bar 7 of a conveying device 1 by way of connection screws 29 (see also FIGS. 3, 4, 6, 7a-7c and 9).

(13) A spacer bar 31 is arranged between the receiving blade 22 and the transverse bar 7, but this however to the conveying element 2 is designed in shortened manner compared to the receiving blade 22 and the transverse bar 7, so that the receiving blade 22 and the transverse bar 7 form a receiving groove 27, which is open to the conveying element 2 and which is closed to the head-end by the spacer bar 31 (See FIGS. 7a-7c and 9).

(14) A wiper blade 23 of plastic with a holding section 26 is inserted into the receiving groove 27 and is floatingly mounted along an axis transverse to the conveying surface, i.e. vertically. The holding section 26 in the receiving groove 27 has corresponding play along the axis transverse to the conveying surface 10. The wiper blade 23 with its holding section 26 is accordingly arranged below the receiving blade 22.

(15) The wiper blade 23 forms a wiper lip 24, which projects beyond the receiving blade 22 in the direction of the conveying element 2. The wiper lip 24 is bent upwards. The wiper lip 24 lies on the conveying element 2, as can be deduced from FIGS. 7a to 7c, as well as FIG. 9. The wiper lip 24 for this in particular has a biasing. The face edge 25 of the wiper lip 24 which is supported on the conveying element 2 follows the outer contour of the conveying element 2 moved past the wiper lip 24. Accordingly, the face edge 25 has a temporally changing support position.

(16) The receiving blade 22 at its end section, which is directed to the conveying element 2 toward the wiper blade 23 has a bevelling, which assists the bending of the wiper lip 24.

(17) The wiper device 20 moreover includes a capture container 40 which, via hang-in elements 42 (see also FIG. 2), is hung into hang-in openings 11 of a cover plate 8 of the conveying device 1. The capture container 40 can be quickly and simply unhooked for emptying and hung or mounted in again, in this manner The capture container 40 includes a capture opening 43 that is covered by a cover grid 41. The cover grid 41 is to prevent larger objects that do not belong in the capture container 40, from inadvertently getting into the capture container. The cover grid 41 also serves as step protection.

(18) The cover plate 8 itself likewise includes a hang-in element 12, via which the cover plate 8 can be releasably hung into hang-in openings on the lateral frame of the conveying device 1. The cover plate 8 in this manner can likewise easily be assembled and disassembled in this manner, by which means a rapid access to the deflection element in the head-end region is ensured.

(19) The transverse bar 7 and the cover plate 8 are designed in a single-part manner in the form of an angled sheet (see also FIG. 3). Thus, the complete wiper device 20 can be assembled and disassembled in one step as a subassembly via the hang-in connection of the cover plate to the lateral frame.

(20) Rubber buffers 13 are attached on the transverse bar 7, and these permit an elastically damping fastening of the receiving blade 22 on the conveying device 1 via the transverse bar 7. The receiving blade 22 is oscillatorily mounted relative to the conveying device 1 or its support structure by way of this.

(21) Securing means are provided, so that the wiper blade 23 which is floatingly mounted in the receiving groove 27 does not wander out of the receiving groove 27 laterally or towards the conveying element 2. These securing means secure the holding section 26 from sliding out of the receiving groove 27.

(22) The securing means according to FIG. 6 include pin elements 30 that are led transversely through the receiving groove 27 and through recesses in the holding section 26.

(23) The pin elements 30 are fixed from falling out, in the receiving blade 22 and/or the transverse bar 7.

(24) FIG. 5 shows a further alternative or additional variant for securing the wiper blade 23 from sliding out of the receiving groove 27. The holding section 26 here is designed, in a plane view, in a T-shaped manner and engages into the correspondingly designed receiving groove 27. A lateral sliding-out, as well as a sliding-out from the groove opening in the direction of the conveying element 2 is not possible due to the T-shaped engagement into the receiving groove 27.

(25) The conveying element 2 according to FIGS. 7a to 7c as well as FIGS. 8 and 9 is designed as a modular belt chain and consists of a multitude of chain links, which are connected to one another in manner pivotable relative to one another, via connection pivots. The modular belt chain 2 forms a polygonal outer contour in the deflection.

(26) The method for wiping foreign objects 15 away from the conveying surface 10 of the conveying element 2 can be explained by way of FIGS. 7a to 7c.

(27) The modular belt chain 2 is driven in the conveying direction F by a drive device (not shown). The modular belt chain 2 is led into a deflection about a deflection axis 6, in the front head-end region. The modular belt chain 2 in the deflection changes over from a conveying section 4 into a return section 5.

(28) The wiper blade 23 with its wiper lip 24 below the level of the conveying surface 10 and in an upper region of the deflection bears on the modular belt chain 2. The wiper lip 24 due to the biasing follows the contour of the modular belt chain which is moved past.

(29) The wiper lip 24, which is pressed onto the modular belt chain 2, is set into oscillation movement due to the polygonal outer contour of the moved modular belt chain 2 in the deflection. This movement is transmitted from the wiper blade 23 onto the receiving blade 22, which is oscillatorily mounted with respect to the conveying device 1 and as a result is brought into oscillation.

(30) The foreign objects 15, which are now conveyed on the modular belt chain 2 to the front head-end region 3a, run onto the wiper lip 24 in the region of the deflection and are wiped away from the modular belt chain 2 at the wiper lip 24. The foreign objects 15 due to their moment of inertia as well as due to the oscillating wiper lip 24 are brought via the wiper lip 24 onto the receiving surface 28 of the receiving blade 22.

(31) The foreign objects 15 are kept in motion on the receiving surface on account of the oscillation or vibration of the receiving blade 22. Although the foreign objects have an essentially non-directional movement on the receiving surface, they are finally led to the capture container 40, where the foreign objects 15 drop through the cover grid 41 into the capture container 40.

(32) A receiving surface 28, which is inclined towards the capture container 40, encourages the movement of the foreign objects 15 towards the capture container 40 in a manner assisted by gravity, since the movement of the foreign objects 15 on the receiving blade 22 is essentially non-directional, as mentioned.

(33) FIG. 8 shows a production line with worker-rider belts 50, which are arranged on both sides of the production line. The worker-rider belts 50 have modular belt chains 2 that are deflected in each case at a front and rear head-end region 3a, 3b.

(34) A wiper device 20 of the already described type is arranged on the front head-end region 3a.

(35) FIG. 9 shows a lateral view of the worker-rider belt 50 from the front head-end region 3a.