JP2013056292A - Vibrating screen - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibrating screen comprising a screen push-up part for removing materials to be sorted, from a slit without stopping the screen.SOLUTION: The vibrating screen includes: a trough 7; a vibrating carrier plate 2 which is provided to the trough 7 and composes a vibrating carrier face; and at least one slit part 13 provided along a width direction orthogonal to a conveying direction on the way thereof in the vibrating carrier face. Further, the screen includes: a push-up part which is provided in the trough 7 near the slit part 13 along a width direction and is protrusibly supported toward the slit 13; and a manual operation part 5 arranged outside the trough 7 correlating with the push-up part to drive the push-up part to at least the protruding direction.

Description

  The present invention relates to a vibrating screen that easily eliminates clogging of sorting objects generated during vibration conveyance and improves conveyance efficiency.

  2. Description of the Related Art Conventionally, a vibrating screen that vibrates a conveyance path is known as one of conveyance machines having a function of conveying articles while sieving.

  The vibrating screen includes a trough, a vibration conveyance surface provided on the trough, and a vibration exciter that applies vibration to the trough, and vibrates the vibration conveyance surface through the trough so as to convey the article. Configured.

  At that time, a sieve function is generally added to the vibration conveyance surface in order to select articles during vibration or remove foreign substances. As this sieving function, Patent Document 1 and Patent Document 2 employ a sieving mesh on the vibration conveyance surface, and screen the sieving material downward from the sieving mesh while vibrating the sieving material on the sieving mesh. It is disclosed.

  Further, as forms other than the mesh of the vibration conveyance surface, punch metal having a square hole, a hexagonal hole, a round hole, etc., comb teeth, a grizzly river, and the like are known.

  In addition, in a vibrating screen that employs a wavy plate on the vibration conveying surface to convey the object to be left in one direction, instead of using a sieve mesh, It is also known that a plurality of slits in the width direction perpendicular to the conveying direction are provided at some points in the middle so as to screen the object to be sorted through the slit portion.

JP 07-080411 A JP 2002-347913

  However, in the vibrating screen employing the slit portion, the object to be sorted is caught in the slit portion, or accumulated and grown, and is not screened off by the slit portion, and the slit portion may be clogged. In addition to the lowering of the sorting function of the slit portion, there is a problem in that the deposited sorting objects physically hinder the transportation of the rear sorting objects or damage the selection objects to be left on the conveyance path.

  In order to eliminate such clogging of the objects to be sorted, it is necessary to stop the operation of the vibrating screen each time and remove the clogged portion of the slit portion by a human hand. For this reason, there existed a malfunction that work efficiency fell remarkably.

  An object of the present invention is to provide a vibrating screen that easily eliminates the clogging of the objects to be sorted generated in the slit portion during the vibration conveyance and improves the conveyance efficiency.

  The present invention takes the following measures in view of the above problems.

  That is, the vibrating screen according to the present invention sorts the trough, the vibration transfer surface provided on the trough, and the object to be selected provided along the width direction perpendicular to the transfer direction in the transfer direction of the vibration transfer surface. A vibrating screen having one or more slit portions for the push-up portion installed along the width direction in a trough in the vicinity of the slit portion and supported so as to protrude and retract toward the slit portion And an operating portion disposed outside the trough in association with the push-up portion so as to drive the push-up portion at least in the direction of projecting and retracting with respect to the slit portion.

  When configured in this way, the object to be sorted can be dropped from the slit part by vibration, and the object to be sorted clogged in the slit part by driving the push-up part through the operation part is pushed upward from below by the push-up part, The clogging of the slit portion can be removed. And since this operation part exists in the outer side of a trough, it can carry out, operating a vibrating screen, and it can avoid effectively that it leads to the fall of operating efficiency.

  As a simple configuration, it is preferable that the push-up portion is rotatable by a rotating shaft and retracts by its own weight to a position where the object to be sorted cannot be dropped when not driven.

  As described above, according to the present invention described above, it is possible to provide a vibrating screen that can efficiently remove the objects to be sorted clogged in the slit portion without stopping the vibrating screen as necessary.

The side view of the vibrating screen which concerns on one Embodiment of this invention Plan view of the vibratory conveyor Cross-sectional arrow view in Fig. 1 Enlarged view of part C in Figure 1 Cross-sectional view of the main part of the vibrating screen of FIG. The principal part perspective view in the vibration screen of FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a side view of the vibrating screen 1, and FIG. 2 is a plan view of the vibrating screen 1. The conveying direction is upstream on the left side of the drawing and downstream is the right side of the drawing.

  As shown in FIG. 2, the vibration screen 1 is attached so that three vibration conveyance plates 2 constituting the vibration conveyance surface are gradually lowered from upstream to downstream. The vibration conveyance plate 2 is fixed to the trough 7 with bolts. An electromagnetic feeder 6 shown in FIG. 1 is installed below the vibrating screen 1 to vibrate the vibrating screen 1.

  The object to be sorted is input from the input port 3 located on the uppermost stream of the vibration screen 1 and is conveyed while receiving vibration on the vibration conveyance plate 2 from the upstream side to the downstream side of the vibration screen 1.

  FIG. 3A is a cross-sectional view of the vibration conveyance plate 2 taken along the line AA in FIG. 1, but the vibration conveyance plate 2 is a corrugated stainless steel plate having no slit in this embodiment. This shape is for conveying a bar-shaped metal material or the like to be left in the conveying path without being screened out of the objects to be oscillated and conveyed while being aligned in one direction.

  As shown in FIG. 2 and FIG. 3A, the three vibration conveyance plates 2 are arranged so that the corrugated cross-sectional direction and the conveyance direction are perpendicular to each other, and are selected between the vibration conveyance plates 2 and 2. A slit portion 13 for dropping an object is provided in the width direction of the vibrating screen 1. At this time, the width of the slit 13 can be changed by providing a long hole 7a (see FIG. 1) along the longitudinal direction in the trough 7 and adjusting the position of the bolt 7b inserted into the long hole 7a.

  In addition to the above configuration, in the present embodiment, a push-up portion 15 is provided in the vicinity of the upstream side of the slit portion 13 in order to remove an object to be sorted clogged in the slit portion 13 as shown in FIGS. .

  As shown in FIGS. 5 and 6, the push-up portion 15 is composed of a rotating shaft 10 in which both ends of a square bar 10a are processed into round bars 10b and an L-shaped push-up plate 9, and the push-up plate 9 is selected. The thickness of the tip 12 that contacts the object is designed to be smaller than the gap of the slit 13. The push-up plate 9 is screwed to the square bar 10a of the rotary shaft 10 at the base end, and the rotary shaft 10 is provided with an opening provided by cutting the trough side surface as shown in FIGS. 11, the both ends of the trough 7 are supported by the support portion 4 shown in FIGS. 2 and 3, and a manual operation portion 5 is provided at one end of the shaft. The manual operation unit 5 of this embodiment includes an arm 5a having a base end fixed to the shaft end of the rotary shaft 10 and extending in a direction perpendicular to the shaft, and a handle 5b rotatably attached to the tip of the arm 5a. The tip 12 of the push-up plate 9 can be inserted into the slit 13 by rotating the manual operation unit 5.

  Since the support portion 4 is installed independently of the trough 7, the push-up portion 15 supported by the support portion 4 is not easily affected by the vibration of the vibration screen 1, and the operation of the manual operation portion 5 is easy. is there.

  The rotary shaft 10 is disposed at a position displaced upstream from the slit portion 13 in the conveying direction, and the push-up plate 9 rotates as indicated by an imaginary line in FIGS. 5 and 6 when no operating force is applied to the manual operation portion 5. The mounting position on the rotary shaft 10 is set so that the tip 12 is positioned below the shaft 10. That is, when the manual operation section 5 is rotated and the push-up plate 9 is inserted into the slit section 13, it moves to the projecting position 9 a, and when the operation force to the manual operation section 5 is released, the weight from the slit section 13 is also lowered from its lower position. Also, the object is retreated and moved to the retreat position 9b so that the fall of the object to be sorted from the slit portion 13 is not hindered.

  As described above, the vibrating screen according to the present embodiment includes the trough 7, the vibration conveying plate 2 provided on the trough 7 and constituting the vibration conveying surface, and perpendicular to the conveying direction in the conveying direction of the vibrating conveying surface. In one having one or two or more slit portions 13 provided along the width direction, it is installed in the trough 7 in the vicinity of the slit portion 13 along the width direction so that it can protrude toward the slit portion 13. A supported push-up portion 15 and a manual operation portion 5 disposed outside the trough 7 are further provided in association with the push-up portion 15 to drive the push-up portion 15 at least in the protruding direction.

  If comprised in this way, while being able to drop a to-be-sorted object from the slit part 13 with a vibration, the to-be-sorted object clogged by the slit part 13 is driven by the pushing-up part 15 by driving the pushing-up part 15 through the manual operation part 5. By pushing up from below, clogging of the slit portion 13 can be removed. Moreover, since the manual operation unit 5 is located outside the trough 7, it can be performed while the vibrating screen 1 is operated, and it is possible to effectively avoid a decrease in operating efficiency.

  In addition, the push-up member 15 can be rotated by the rotary shaft 10, and when it is not driven, the push-up member 15 is retreated by its own weight to a position where the fall of the object to be sorted is not obstructed, so that the clogging of the slit portion 13 is removed. As long as the operation is added, even if the operation is stopped at random, the proper conveying operation can be continued, and the usability is improved.

  As mentioned above, although one Embodiment of this invention was described, the specific structure of each part is not limited only to embodiment mentioned above.

  For example, in this embodiment, the vibration conveyance plate constituting the vibration conveyance surface has a corrugated shape, but other shapes of vibration conveyance plates such as a flat plate are also effective.

  Further, in this embodiment, the push-up member that removes the clogging of the object to be sorted is an L-shaped plate material, but it may be a push-up member that pushes up and removes the object to be sorted, such as a comb shape or a wave shape. . Further, although the L-shaped plate is screwed to the rotating shaft, it may be a cast product integrally formed with the rotating shaft.

  Furthermore, in the present embodiment, the installation position of the push-up plate is set in the vicinity of the upstream side of each slit portion, but it may be installed on the downstream side as long as it does not hinder the fall of the object to be sorted.

  In addition, in the present embodiment, a desired effect is obtained by rotating the handle by the manual operation unit, but driving by external power such as an electric actuator may be used.

  Other configurations can be variously modified without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Vibration screen 5 ... Manual operation part 7 ... Trough 10 ... Rotating shaft 13 ... Slit part 15 ... Push-up part

Claims (2)

A trough, a vibration conveying surface provided in the trough, and one or more slit portions for sorting the objects to be sorted provided along the width direction orthogonal to the conveying direction in the conveying direction of the vibration conveying surface In a vibrating screen with
A push-up part installed along the width direction in the trough in the vicinity of the slit part and supported so as to be able to project and retract toward the slit part;
An oscillating screen, further comprising an operation unit disposed outside the trough in association with the push-up portion so as to drive the push-up portion at least in a direction of projecting and retracting with respect to the slit portion.   2. The vibrating screen according to claim 1, wherein the push-up portion is rotatable by a rotating shaft and retracts by its own weight to a position where the object to be sorted cannot be dropped when not driven.

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