JP6758723B2 - Vibrating sieve net and vibrating sieve device with clogging prevention function - Google Patents

Description

The present invention relates to a vibrating sieve net with a clogging prevention function to be stretched on an industrial vibrating sieve device and a vibrating sieve device using the same.

Conventionally, as shown in Patent Document 1, in this type of vibrating sieve net, a vibrating sieve net is stretched between the frames on both sides of the vibrating sieve, and a sieved body is placed under the vibrating sieve net. A plurality of axes orthogonal to the flow direction are provided and a partition net is provided, a plurality of storage chambers are formed between the plurality of shafts and the partition net, and a plurality of spheres are stored inside the storage chamber. When the frame vibrates, a plurality of spheres in the storage chamber strike the vibrating sieve net from below, thereby preventing clogging of the vibrating sieve net.

In addition, a configuration has been proposed in which a plurality of spheres are attached to the upper surface of the vibrating sieve net with a string, and the spheres vibrate on the net surface due to the vibration of the vibrating sieve net to prevent clogging of the net.

Japanese Unexamined Patent Publication No. 8-155396 Japanese Patent Application No. 2017-197345

By the way, the entire vibrating sieving net is installed so that the vibrating sieving net itself has a slight downward inclination from the upstream side to the downstream side in the flow direction of the object to be sieved. Then, due to this inclination, the spheres are unevenly distributed on the lower side (downstream side), and unevenness occurs in the tapping position in each storage chamber or on the surface of the vibrating sieve net, which is sufficient. There is a problem that the clogging prevention effect cannot be obtained.

Therefore, as shown in Patent Document 2, the present inventor integrally provides the vibrating sieve net with a tapping net having a square larger than the vibrating sieve net under the vibrating sieve net, and vibrates the vibrating sieve net. We have developed a vibrating sieve net that prevents clogging of the vibrating sieve net by hitting the lower surface of the vibrating sieve net with the tapping net.

This tapping net has an excellent function of preventing clogging of the vibrating sieve net, but since the vibrating sieve net is tapped from the lower side, the metal core wire on the lower side of the vibrating sieve net is used for a long period of time. When a synthetic resin horizontal wire (for example, a circular wire having a diameter of 1.6 mm) in which (for example, a diameter of 0.35 mm) is embedded is struck from below for a long period of time, a resin coating portion is formed on the core wire. It was found to move upwards, resulting in the metal core being exposed underneath the coating. When the core wire is exposed from the covering portion in this way, it is necessary to replace the vibrating sieve net, and there is a problem that the life of the vibrating sieve net is short.

Further, in the vibrating sieve net with a clogging prevention function of Patent Document 2, thin plate strip-shaped fixing plates are fixed under the vibrating sieve net at predetermined intervals, and the thin plate strip-shaped fixing plates are placed between these thin plate strip-shaped fixing plates. The structure is such that the tapping net is fixed to the lower side, and in order to fix the vibrating sieve net to the vibrating sieve device, the synthetic resin horizontal wires on both sides are fixed between the vibrating upright plates and stretched in opposite directions. At the same time (the position of the fixing portion is constant), the anti-vibration rubber and the support rod (support member) are brought into contact with the lower side of each of the thin strip-shaped fixing plates, and the support member raises the central portion of the vibrating sieve net. The vibrating sieving net was set in the vibrating sieving device in a state of being stretched upward so as to form an arc shape upward in a direction orthogonal to the flow direction of the object to be sieved. ..

By the way, in the portion of the vibrating sieve net to which the anti-vibration rubber abuts, the thin plate strip-shaped fixing plate and the tapping net are adhered to each other, and the thickness of the portion in the vertical direction becomes large, and the portion having the large thickness is lowered. The anti-vibration rubber comes into contact with the side. In this case, since the positions of the fixing portions at both ends of the vibrating sieve net are constant, as a result, the arc of the vibrating sieve net protrudes greatly upward, and the sieve body is formed at both ends of the vibrating sieve net. There was a problem that it was unevenly distributed (see the two-point chain line of the vibrating sieve net in FIG. 6). From the viewpoint of transporting the sieved body, it is preferable that the arc of the vibrating sieve net is as gentle as possible.

The present invention has been made in view of the above-mentioned conventional problems, and by devising the cross-sectional shape of the synthetic resin horizontal wire of the vibrating sieve net, the core wire is not exposed and the life of the vibrating sieve net is extended. It is an object of the present invention to provide a vibrating sieve net and a vibrating sieve device having a clogging prevention function, which can make it possible to loosen a convex arc on the vibrating sieve net.

First, a plurality of parallel synthetic resin vertical wires having no core wire and a plurality of parallel synthetic resin vertical wires intersecting these synthetic resin vertical wires on the lower side and having a metal core wire embedded therein. A vibrating sieve net in which the horizontal lines are heat-welded at their intersections and integrated is stretched on the vibrating sieve device with both side edges parallel to the synthetic resin vertical lines, and the above. When the support member is brought into contact with the vibrating sieving net from the lower side, it is stretched in a convex arc shape upward, and when it is vibrated by the vibrating sieving device, the sieved body is sieved to prevent clogging. In the functional vibrating sieve net, a plurality of thin plate strip-shaped fixing plates having a constant width are fixed under the vibrating sieve net in parallel with the synthetic resin vertical line at predetermined intervals, and for the vibrating sieve. A synthetic resin tapping net having a grid larger than the grid of the vibrating sieve net is arranged below the net and the thin plate strip-shaped fixing plate, and the tapping net is located at a position below the thin strip strip-shaped fixing plate. only, is fixed to the thin strip fixed plate, in the range of the thin plate strip fixed plates adjacent is the lower side of the vibrating screen for network are those that are not connected, below the respective thin plate strip fixed plate By removing the tapping net in the side central portion, a fitting recess in which the head of the support member fits is formed in the lower central portion, and the head of the support member becomes the fitting recess. In the fitted state, the head is configured to be able to come into contact with the lower surface of the thin plate strip-shaped fixing plate, and the vibrating sieve net is vibrated at the time of being stretched on the vibrating sieve device for tapping. When the net vibrates up and down, the synthetic resin horizontal wire is beaten by the tapping net, and the cross-sectional shape of the synthetic resin horizontal wire is configured so that the thickness is thicker below the upper side of the core wire. It is composed of a vibrating sieve net with a clogging prevention function, which is characterized by being plastic.

The support member can be made of, for example, anti-vibration rubber (10), support rod (11), or the like. The sieve body is a raw material such as an aggregate. With this configuration, a vibrating sieve net with a clogging prevention function is stretched on a vibrating sieve device by fixing both ends of the synthetic resin horizontal line to a pair of, for example, vibrating upright plates, and the thin plate strip-shaped fixing is performed. When the vibration upright plate or the like is vibrated in the vertical direction including the elliptical locus or the diagonal vertical direction while the fitting recess on the lower side of the plate is supported by a support member such as anti-vibration rubber, each thin plate strip-shaped fixing plate is vibrated. The striking net between them vibrates in the vertical direction with the central portion as the maximum stroke due to elasticity, and taps the lower side of the vibrating sieve net, so that clogging of the vibrating sieve net can be prevented. Further, since the tapping net is integrally formed with the vibrating sieve net, even if the vibrating sieve net with a clogging prevention function is installed in an inclined state, the clogging prevention function can be exhibited without any problem. Further, since the tapping net on the lower side of the thin plate strip-shaped fixing plate is removed, a fitting recess is formed in the portion, and the head of the support member is fitted in the fitting recess, the support member is hit. Since the vertical thickness of the vibrating sieve net at the tangent position can be made thin, a convex arc on the vibrating sieve net when the vibrating sieve net with a clogging prevention function is stretched on the vibrating sieve device. Can be configured more loosely than the conventional device, and uneven distribution of the sieved body to the left and right can be prevented as much as possible. Further, since the synthetic resin horizontal wire on the lower side of the vibrating sieve net is configured to have a larger wall thickness on the lower side than the core wire, the life of the vibrating sieve net can be maintained for a long time.

Secondly, the tapping net has one end edge fixed to the corresponding lower edge of the one thin plate strip-shaped fixing plate, and the other end edge adjacent to the one thin plate strip-shaped fixing plate. constituted by another of said thin strip-like fixing plate of the corresponding said first description of anti-clogging mechanism with vibrating screen for the network in which is fixed to the lower edge.

With this configuration, there is no tapping net in the lower central portion of the thin plate strip-shaped fixing plate, and a fitting recess from which the tapping net is removed is formed, and vibration in the fitting portion of the support member is formed. The vertical height of the sieving net can be made thinner than that of the conventional vibrating sieving net. As a result, when a support member (for example, anti-vibration rubber, etc.) is fitted into the fitting recess to stretch a vibrating sieve net with a clogging prevention function on the vibrating sieve device, an upwardly convex arc is conventionally formed. The structure can be loosely configured as compared with the above, whereby uneven distribution of the sieved member to the left and right can be suppressed as much as possible.

Third, the cross-sectional shape of the synthetic resin horizontal wire is a square shape in which the upper side of the core wire has a semicircular shape and the lower side of the core wire has a side in the vertical direction longer than the radius of the semicircular shape. It is composed of the vibrating sieve net with a clogging prevention function according to the first or second method.

With this configuration, even if the synthetic resin horizontal wire is tapped from below with a tapping net, it is possible to effectively prevent the core wire from being exposed from the covering portion of the synthetic resin horizontal wire, resulting in vibration. The life of the sieving net can be extended.

Fourth, a vibrating sieve device using the vibrating sieve net with a clogging prevention function according to the first description, both ends of the vibrating sieve net with a clogging prevention function parallel to the synthetic resin vertical line. A plurality of the above-mentioned support members, each of which is stretched on the vibrating upright plate in a state where tension is applied in the direction opposite to the lateral direction by 180 degrees, and is fixed to the fixing horizontal rod fixed between the vibrating upright plates. By fitting each of the heads of the above-mentioned heads into the above-mentioned fitting recesses on the lower side of the above-mentioned vibrating sieve net, tension is also applied upward so that the above-mentioned vibrating sieve net has an upwardly convex arc shape. It is stretched in a state, and a driving means for vibrating the vibrating upright plate is provided. By driving the driving means, the vibrating upright plate is vibrated and the tapping net is vibrated up and down. It is composed of a vibrating sieving device using a vibrating sieving net with a clogging prevention function that enables the lower side of the vibrating sieving net to be struck with the beating net.

The drive means can be configured by a motor (M). With this configuration, when the vibrating upright plate is vibrated in the vertical direction including the elliptical locus or in the diagonal vertical direction, the tapping net between the thin plate strip-shaped fixing plates vibrates in the vertical direction with the central portion as the maximum stroke. Since the lower side of the vibrating sieve net is tapped, clogging of the vibrating sieve net can be effectively prevented.

In the present invention, a vibrating sieve net with a clogging prevention function is stretched on a vibrating sieve device by fixing both ends of its synthetic resin horizontal wire to a fixing member such as a pair of vibrating upright plates, and the thin plate strip-shaped fixing is performed. When the vibration net with the upper clogging prevention function is vibrated while the lower side corresponding to the plate is supported by the support member, the tapping net between the thin plate strip-shaped fixing plates moves in the vertical direction with the central part as the maximum stroke. Since it vibrates and hits the lower side of the vibrating sieve net, clogging of the vibrating sieve net can be effectively prevented.

Further, since the vibrating sieve net and the tapping net are integrated, even if the vibrating sieve net with a clogging prevention function is installed on the vibrating sieve device at an angle, the spheres are not unevenly distributed as in the conventional case. The clogging prevention function is not reduced.

Further, since a fitting recess is formed on the lower side of the thin plate strip-shaped fixing plate and the head of the support member is fitted in the fitting recess, the vertical thickness of the vibrating sieve net at the contact position of the support member is formed. When a vibrating sieve net with a clogging prevention function is stretched on the vibrating sieve device, a convex arc can be formed more gently on the vibrating sieve net than in the conventional device. Therefore, uneven distribution of the sieved body to the left and right can be prevented as much as possible.

Further, since the synthetic resin horizontal wire on the lower side of the vibrating sieve net is configured to have a larger wall thickness on the lower side than the core wire, the life of the vibrating sieve net can be maintained for a long time.

Further, when the vibrating upright plate is vibrated in the vertical direction including the elliptical locus or in the diagonal vertical direction, the tapping net between the thin plate strip-shaped fixing plates vibrates in the vertical direction with the central portion as the maximum stroke, and is used for a vibrating sieve. Since the lower side of the net is tapped, it is possible to realize a vibrating sieve device capable of effectively preventing clogging of the vibrating sieve net.

(A) is a partially cutaway plan view of the vibration sieving net with a clogging prevention function according to the present invention, and (b) is a side view of the vibration sieving net of the same as above, and the position of the vibration-proof rubber is described. is there. It is the bottom view of the vibrating sieve net with the clogging prevention function (the vibrating sieve net is omitted). It is a partially disassembled perspective view of the net for the vibrating sieve with the clogging prevention function as above. It is a side view of the same net which shows the tapping state of the vibrating sieve net with the clogging prevention function. It is a partially enlarged perspective view of the net for the vibrating sieve with the clogging prevention function as above. It is a cross-sectional view of the vibrating sieve device when the vibrating sieve net with the clogging prevention function is attached to the vibrating sieve device. (A) is a cross-sectional view of a synthetic resin horizontal line of a conventional vibrating sieve net with a clogging prevention function, and (b) is a cross-sectional view of the vibrating sieve net of the same vibrating sieve net with a clogging prevention function. It is sectional drawing which shows the fixing structure to the vibrating sieve apparatus using the vibrating sieve net with the clogging prevention function. It is a side view of the vibrating sieve apparatus using the vibrating sieve net with the clogging prevention function as above.

Hereinafter, the vibrating sieve net with the clogging prevention function and the vibrating sieve device according to the present invention will be described in detail.
FIG. 1A is a plan view of a vibrating sieve net 1 with a clogging prevention function, and FIG. 1B is a side view of FIG. 1A, which supports a vibration-proof rubber 10 provided in the vibrating sieve device. The rod 11 is described by a two-dot chain line. In the figure, the vertical direction (arrow A direction) is referred to as "vertical direction", the direction orthogonal to the vertical direction is referred to as "horizontal direction", and is covered in the vertical direction (arrow A direction) when installed in the vibrating sieve device. It is assumed that the sieve body moves.

The vibrating sieve net 1 with a clogging prevention function according to the present invention includes a vibrating sieve net 2 with a small square on the upper side, a tapping net 4 with a large square on the lower side, and the tapping net 4. It is composed of a thin strip-shaped fixing plate 5 for connecting to the back surface side of the vibrating sieve net 2. Therefore, in the following description, when the entire net is shown, it is referred to as "vibration sieve net 1 with clogging prevention function", and when only the upper vibrating sieve net 2 is shown, it is referred to as "vibration sieve net 2". When only the lower tapping net 4 is shown, it is referred to as "tapping net 4".

Here, the horizontal line of the vibrating sieve net 2 is referred to as a "synthetic resin horizontal wire 2a", and a metal core wire 3 is embedded inside the synthetic resin horizontal wire 2a (see FIGS. 3 and 5). ). The vertical wire of the vibrating sieve net 2 is referred to as a "synthetic resin vertical wire 2b", and the core wire is not embedded in the synthetic resin vertical wire 2b. Further, the horizontal line of the tapping net 4 is referred to as a "synthetic resin horizontal line 4a", and the vertical line of the tapping net 4 is referred to as a "synthetic resin vertical line 4b". Neither the synthetic resin horizontal wire 4a nor the synthetic resin vertical wire 4b has a metal core wire embedded therein.

Further, the synthetic resin horizontal lines 2a and 4a and the synthetic resin vertical lines 2b and 4b are all made of urethane, and the thin plate strip-shaped fixing plate 5 is also made of urethane.

Further, in FIG. 1, in order to make the structure easy to understand, the area of the tapping net 4 below the area of the vibrating sieve net 2 on the upper side is drawn wider as shown in the exploded view, but in reality, 1 As the vibrating sieve net 1 with a clogging prevention function, the vibrating sieve net 2 and the tapping net 4 have the same area, and vertically between the vibrating sieve net 2 and the tapping net 4. The plurality of thin plate strip-shaped fixing plates 5 (width t1) are arranged in parallel with the direction and at regular intervals t2 in the lateral direction (see FIG. 4). The vertical length of the thin strip-shaped fixing plate 5 is formed to be the same as the vertical length of the vibrating sieve net 1 with a clogging prevention function.

As shown in FIG. 1, the vibration sieve net 2 intersects a plurality of parallel synthetic resin vertical lines 2b having no core wire on the upper side and the lower side of these synthetic resin vertical lines 2b. A plurality of parallel synthetic resin horizontal wires 2a on the lower side in which a metal core wire 3 is embedded are heat-welded at their intersections 2'to form a vertically and horizontally integrated net. Therefore, the net directly tapped from below by the tapping net 4 is the synthetic resin horizontal line 2a.

On the lower side of the vibrating sieve net 2 (lower side of the synthetic resin horizontal line 2a), thin plate strip-shaped fixing plates 5 having a constant width t1 are arranged at predetermined intervals (in the embodiment, the interval t2) in parallel with the synthetic resin vertical line 2b. , See FIG. 4). More specifically, the thin strip-shaped fixing plate 5 is a flexible plate made of urethane having a thickness of about 2 mm to 3 mm, and the upper surface 5a side thereof is fixed to the synthetic resin horizontal line 2a of the vibrating sieve net 2 by heat welding. Has been done. The thin plate strip-shaped fixing plate 5 is fixed in parallel with the synthetic resin vertical line 2b, and is provided in parallel with each other in the lateral direction of the vibrating sieve net 2 with the interval t2 (these sheet strip-shaped fixing plates 5). (See FIG. 4). Therefore, in FIG. 1, only two thin strip-shaped fixing plates 5 appear, but in reality, as shown in FIG. 6, a plurality of thin plate strip-shaped fixing plates 5 are provided along the lateral direction of the vibrating sieve net 2 with an interval t2. It is provided. In the embodiment of FIG. 6, the thin plate strip-shaped fixing plate 5 is provided at three positions of the support pillar 11 of the anti-vibration rubber 10.

The anti-vibration rubber 10 forms the anti-vibration rubber 10 itself in a vertically long substantially rectangular parallelepiped shape (or a vertically long plate shape) along the thin plate strip-shaped fixing plate 5, and the support rod 11 is formed on the lower surface side of the anti-vibration rubber 10. A plurality of thin plate strip-shaped fixing plates 5 are provided in the vertical direction at regular intervals, and the lower surface of the thin plate strip-shaped fixing plate 5 is supported along the thin plate strip-shaped fixing plate 5. Instead of providing a plurality of the support rods 11, a plate-shaped support plate 11 long in the vertical direction may be provided. The vibration-proof rubber 10 and the support rod 11 or support plate 11 are referred to as "support members".

Further, the length of the anti-vibration rubber 10 may be the same as that of the thin plate-shaped fixing plate 5, but a plurality of anti-vibration rubbers 10 having a predetermined length shorter than that of the thin plate-shaped fixing plate 5 may be used. On the lower side of 5, it may be configured to support in the vertical direction at regular intervals.

The support rod 11 or the support plate 11 of the anti-vibration rubber 10 is fixed with both ends 8'and 8'between the pair of left and right vibrating upright plates 6 and 6'of the vibrating sieve device 7 described later. It is fixed on the side sieve 8 (see FIG. 6). A plurality of the fixing horizontal rods 8 are provided in the vertical direction in a state orthogonal to the vertical direction (flow direction of the sieved body) in the pair of vibrating upright plates 6 and 6', and the lower end of the support rod 11 is provided. Alternatively, the lower end of the support plate 11 is fixed. Therefore, the fixing support rod 8 and the anti-vibration rubber 10 and the support rod 11 or the support plate 11 vibrate together with the vibrating upright plates 6 and 6'.

Above the upper surface 10a of the vibration damping rubber 10 serving as a support member is in a state in contact with the rear surface 5b of each thin strip-shaped fixing plate 5 (contact) (see FIG. 1). As a result, when the vibrating sieve net 2 is stretched on the vibrating sieve device, tension is also applied upward, and the vibrating sieve net 2 is configured to form an arc shape that is convex upward (see FIG. 6).

Below the vibrating sieve net 2 and the thin plate strip-shaped fixing plate 5, a tapping net 4 for clearing clogging of squares larger than the squares of the vibrating sieve net 2 is provided.

The tapping net 4 is a synthetic resin horizontal line 4a parallel to the synthetic resin horizontal line 2a of the vibrating sieve net 2 and a synthetic resin vertical line parallel to the synthetic resin vertical line 2b of the vibrating sieve net 2. It is composed of 4b, and each intersection 4'of the synthetic resin horizontal wire 4a and the synthetic resin vertical wire 4b is fixed by heat welding, thereby forming a tapping net 4. The diameter of each line 4a, 4b of the tapping net 4 is larger than the diameter of the vertical and horizontal lines 2a, 2b of the vibrating sieve net 2, and the diameter is about 2 to 2.5 times thicker than that of the vibrating sieve net 2. Has a sieve. Further, one square of the tapping net 4 is configured to have a size of about 16 times the size of one square of the vibrating sieve net 2.

Such a tapping net 4 is fixed to the back surface 5b of the thin plate strip-shaped fixing plate 5 only at the lower position of the thin plate strip-shaped fixing plate 5 (see FIG. 2), and the adjacent thin plate strip-shaped fixing plate 5, In the range between 5's, it is not connected (fixed) to the lower side of the vibrating sieve net 2 (see FIG. 1). More specifically, the synthetic resin vertical lines 4b (4b', 4b ") of the tapping net 4 located below the thin plate strip-shaped fixing plate 5 are heat-welded to the lower surface 5b of the thin plate strip-shaped fixing plate 5. The other synthetic resin vertical wire 4b is fixed and is not connected to the vibrating sieve net 2 under the vibrating sieve net 2, and is in a free state. A certain gap is formed between the synthetic resin horizontal wire 2a of the vibrating sieve net 2 and the synthetic resin vertical wire 4b of the tapping net 4.

Therefore, when the vibrating sieve net 1 with a clogging prevention function is stretched on the vibrating sieve device 7 (described later) and the device is vibrated as shown in FIG. 4, the thin plate strip-shaped fixing plates 5 and 5 are vibrated. The beating net 4 in between vibrates in the vertical direction (in the direction of arrow D), and when it vibrates upward, it abuts and strikes the upper vibrating sieve net 2 from the lower side, and as a result, the vibrating sieve is used. The clogging of the net 2 can be eliminated. When the tapping net 4 moves upward, it directly hits the synthetic resin horizontal line 2a below the vibrating sieve net 2.

Further, the portion (longitudinal portion) of the tapping net 4 corresponding to the lower central portion 5c of each of the thin plate strip-shaped fixing plates 5 has been removed (see FIGS. 2 and 4), whereby each of the above A fitting recess 5d into which each head portion 10a of each of the vibration-proof rubbers 10 is fitted is formed in the lower central portion 5c (see FIGS. 1 and 2). Then, in a state where the head portion 10a of the anti-vibration rubber 10 is fitted into the fitting recesses 5d (see FIGS. 1 and 4), the head portions 10a are the lower surfaces of the thin plate-shaped fixing plates 5. It is configured so that it can come into contact with 5b.

That is, the tapping for network 4, conventionally, in a state where all of the portions corresponding to the lower side of each thin strip-like fixed plate 5 are connected by thermal welding to the lower surface 5b of each thin strip-shaped fixing plate 5 there were. In the present invention, by removing the tapping for network 4 in the portion corresponding to each of the lower central portion 5c of each thin strip-shaped fixing plate 5, each of the lower central portion 5c of the thin strip-like fixing plate 5 Each of the fitting recesses 5d for fitting the anti-vibration rubber 10 is formed therein.

Therefore, in the tapping net 4, the synthetic resin vertical line 4b (the upper surface of the synthetic resin vertical line 4b'in FIGS. 1 and 2) along one of the vertical edges 4c is fixed in the shape of a thin plate strip. Synthetic resin vertical line 4b fixed to the corresponding vertical lower edge 5'of the plate 5 by heat welding and along the other vertical edge 4c' (in FIGS. 1 and 2, the synthetic resin vertical line 4b). The upper surface of the wire 4b ") is fixed to the corresponding lower edge 5" in the vertical direction of the other thin plate-shaped fixing plate 5 adjacent to the one thin plate strip-shaped fixing plate 5 by heat welding.

In FIG. 1, the synthetic resin vertical lines 4b', 4b "fixed to the thin plate strip-shaped fixing plates 5 and 5 of the tapping net 4 are compared with other synthetic resin vertical lines 4b. Although the cross section is square and the cross section is large, the synthetic resin vertical lines 4b', 4b "may be the same as other synthetic resin vertical lines 4b. By making the cross-sectional area square like the synthetic resin vertical lines 4b', 4b "and making the cross-sectional area larger than other synthetic resin vertical lines 4b", the depth of the fitting recess 5d is increased. There is an advantage that the support by the anti-vibration rubber 10 is stable.

As shown in FIGS. 6 and 8, in the vibrating sieve net 1 with a clogging prevention mechanism, both edges 2a'and 2a'of the synthetic resin horizontal line 2a are in opposite directions (arrows B and B'directions and lateral directions , respectively. In a state of being extended 180 degrees in the direction opposite to the direction ), the thin plate strip-shaped fixing plate in the tapping net 4 is stretched between a pair of parallel vibrating upright plates 6 and 6'of the vibrating sieve device 7. The anti-vibration rubber 10 on the support rod 11 is in a state of being fitted and in contact with the lower side (fitting recess 5d) of the portion fixed to the 5th and 5th. In FIG. 6, reference numeral 8 denotes a fixing horizontal rod for fixing the support rod 11. As described above, a plurality of the anti-vibration rubbers 10 may be provided in the vertical direction, or a single anti-vibration rubber which is long in the vertical direction may be used. Further, a plurality of the support rods 11 may be provided corresponding to the vibration-proof rubber 10, or may be a plate-shaped member long in the vertical direction.

Further, as shown in FIG. 7B, the cross-sectional shape (cross-sectional shape of the covering portion, vertical cross-sectional shape in the present embodiment) of the synthetic resin horizontal wire 2a of the vibrating sieve net 2 of the present invention is the core wire. The wall thickness of the covering portion on the lower side 22 is larger than that on the covering portion on the upper side 21 of 3. The one shown in FIG. 7A is a cross-sectional shape (longitudinal cross-sectional shape) of the conventional synthetic resin horizontal wire 2a, and the core wire 3 is provided at the center of the circular cross-sectional shape. The covering portion refers to a portion of the synthetic resin horizontal wire 2a made of synthetic resin (made of urethane or the like) around the core wire 3.

More specifically, in the cross-sectional shape of the synthetic resin horizontal wire 2a according to the present invention, as shown in FIG. 7B, the covering portion on the upper side 21 of the core wire 3 has a semicircular shape, and the core wire The lower covering portion of No. 3 is formed in a substantially rectangular shape (or square shape) having one side in the vertical direction longer than the radius of the semicircular shape.

As an example, when the diameter of the conventional synthetic resin horizontal wire 2a shown in FIG. 7A is, for example, 1.6 mm and the diameter of the core wire is, for example, 0.35 mm, the wall thickness of the covering portion of the synthetic resin horizontal wire 2a is It becomes 0.625 mm. The diameter of the core wire of the synthetic resin horizontal wire 2a according to the present invention is 0.35 mm, which is the same as the conventional one, and the wall thickness of the covering portion 21 above the core wire 3 is 0.625 mm, which is the same as the conventional one. The wall thickness of the covering portion is larger than that of the conventional wall thickness, for example, the wall thickness in the vertical direction is 1.425 mm. Therefore, the width of the synthetic resin horizontal line 2a in the vertical direction is about 2.4 mm.

The cross-sectional shape of the covering portion on the lower side 22 of the synthetic resin horizontal wire 2a has a vertical width of, for example, 1.6 mm, which is the same as the diameter of the conventional synthetic resin horizontal wire 2a, but the lower end portion has both corners. It is configured so that 23 and 23 have a substantially rectangular cross section at right angles.

The tapping net 4 abuts on the synthetic resin horizontal wire 2a on the lower side of the vibrating sieve net 2 from below due to vibration, and strikes the core wire of the synthetic resin horizontal wire 2a. Since the thickness of the covering portion 22 below 3 is configured to be large, the core wire 3 is easily exposed from the covering portion of the synthetic resin horizontal wire 2a even if the tapping is repeated. There is no.

In the vibrating sieve device 7, as shown in FIG. 9, the vibrating upright plates 6 and 6'are vibrably supported by the support devices 12 and 12 on the fixed machine frame 21 installed on the ground G. A fixed machine frame 13 for a motor is installed on the ground G, and a driving motor M is fixed on the machine frame 13. A vibrator 14 is provided on the vibration upright plates 6 and 6', and a drive belt 15 is hung on the rotating body 14a of the vibrator 14 and the pulley P of the motor M.

An eccentric weight (not shown) is fixed to the drive shaft of the rotating body 14a of the vibrator 14, and by driving the motor M to rotate the rotating body 14a, the vibrator 14 vibrates, resulting in vibration. , The vibrating sieve net 1 with a clogging prevention function stretched between the vibrating upright plates 6 and 6'due to the vibration of the vibrating upright plates 6 and 6'(indicated by a two-point chain line in FIG. 9 ). Can be vibrated.

The direction of vibration is, for example, as shown by an arrow C in FIG. 9, vibration along an elliptical orbit around a central axis Q inclined by 45 degrees with respect to the vertical, and the clogging is performed along the elliptical orbit. The vibrating sieve net 1 with a prevention function will vibrate.

As shown in FIG. 8, both left and right ends of the vibrating sieve net 1 with a clogging prevention function are fixed between the vibrating upright plates 6 and 6'. Since the fixing structures of the left and right side edges of the vibrating sieve net 1 with a clogging prevention function are symmetrical, only the fixing structure on the left side will be described with reference to FIG. In the figure, an L-shaped angle 19 is fixed inside the vibrating upright plates 6 and 6', and a clamping bar 16 is provided at the upper portion of the L-shaped angle 19 with the upper end portion 16a as a fulcrum and the lower end portion 16b as described above. The tension bolt 17 is arranged obliquely from the inside of the clamping bar 16 so as to face the angle 19, and the end portion of the tension bolt 17 penetrates the vibration upright plate 6 and the vibration upright plate 6 It is fixed with a nut 18 on the outside of the.

In such a structure, hooks 20 are fixed to the left and right side edges (both ends 2a'of the synthetic resin horizontal wire 2a) of the vibrating sieve net 1 with a clogging prevention function, and the hooks 20 are attached to the clamping bar 16. By engaging with the lower end portion 16b of the above and screwing the tension bolt 17, the hook 20 is sandwiched between the lower end portion 16b and the upper surface 19a of the L-shaped angle 19, thereby causing the pair of vibration upright plates. The vibrating sieve net 1 with a clogging prevention function is stretched between 6 and 6'. Then, by screwing the tension bolt 17, the vibrating sieve net 1 is configured to apply tension in the directions of arrows B and B'.

Then, as shown in FIG. 6, the vibrating sieve net 1 with the clogging prevention function is positioned under the vibrating sieve net 2 in a state where tension is applied in the opposite directions (directions of arrows B and B'). A plurality of support rods 11 are erected on the fixing horizontal rod 8 from the lower side of the vibrating sieve net 2 at the corresponding positions of the fitting recesses 5d of the thin plate strip-shaped fixing plate 5, and each support rod 11 is erected. The anti-vibration rubber 10 is fixed to the upper part of the sieve, and the anti-vibration rubber 10 is placed in the fitting recess 5d below the thin plate strip-shaped fixing plate 5 of the vibrating sieve net 1 with a clogging prevention function. Fitting contact is made from the lower side of the sieving net 2. Then, by forming the central support rod 11 slightly longer than the support rods 11 on both sides, the central portion of the vibrating sieve net 1 is slightly lifted upward, and tension is also applied in the upward direction of the vibrating sieve net 1. It is hung and stretched so that the center of the vibrating sieve net 1 has a slightly raised arc shape (convex upward) as a whole (see FIG. 6).

At this time, the fitting recess 5d of the vibration-proof rubber 10 is formed in the arc toward the upper side of the vibration-proof net 2, and the upper and lower parts of the vibration-proof rubber 10 at the contact portion of the vibration-proof rubber 10 are formed. Since the directional width (width t3 in FIG. 4) is thin, the arc is configured to be gentler than the arc toward the upper side of the conventional vibrating sieve net 2 (see FIG. 6). .. As a result, it is possible to minimize the uneven distribution of the sieved body on both side portions of the vibrating sieve net 2 (both side portions having a lower height than the central portion of the vibrating sieve net 2).

In the vibrating sieve device 7 (see FIG. 9), a raw material (a sieved body) such as an aggregate is input from the inlet 7a, and in the device 7, vibration with a clogging prevention function is shown by a two-dot chain line. A sieving net 1 is installed. Then, the raw material input from the inlet 7a is sieved by the vibrating sieve net 1 with a clogging prevention function, and the raw material (the object to be sieved) on the net 1 advances in the direction of arrow I and is sent from the outlet 7b. It is configured to be discharged in the direction of arrow F.

Since the vibrating sieve net 1 with a clogging prevention function of the present invention is configured as described above, both ends 2a'and 2a'of the vibrating sieve net 1 with a clogging prevention function according to the present invention are shown in FIG. As shown in the above, the vibrating sieve device 7 is stretched between the vibrating upright plates 6 and 6'. In this case, as shown in FIG. 8, the hooks 20 at both ends of the vibrating sieve net 1 with the clogging prevention function are engaged with the clamping bar 16 and the tension bolts 17 are screwed into the hooks 20 and the arrows B and B in FIG. It is pulled in the direction and tension is applied in the same direction, and the vibration upright plates 6 and 6 are stretched in opposite directions (left and right directions). The fixing portions at both ends of the vibrating sieve net 1 with a clogging prevention function are indicated by reference numerals 24 and 24'(see FIG. 6).

Further, each head 10a of each anti-vibration rubber 10 is fitted and inserted into each fitting recess 5d on the lower side of each thin plate strip-shaped fixing plate 5 on the lower side of the vibrating sieve net 2, and each head 10a is inserted. Is in contact with each lower surface 5b of each of the thin strip-shaped fixing plates 5.

At this time, since the height of the central anti-vibration rubber 10 fixed on the fixing horizontal rod 8 is slightly higher than the height of the left and right anti-vibration rubbers 10 and 10, the vibrating sieve net 1 with a clogging prevention function 1 As described above, in a state of being pulled in the opposite directions to the left and right, the central part thereof is further pulled upward (tension is also applied upward), and as a whole, in a state of an arc shape convex upward. It is in a state of being stretched between the vibration upright plates 6 and 6.

At this time, the upwardly convex arc is a state in which the fitting recess 5d is formed on the lower surface side of the thin plate strip-shaped fixing plate 5, and the head portion 10a of the vibration-proof rubber 10 is fitted in the fitting recess 5d. The vertical height t3 (see FIG. 4) of the vibrating sieve net 1 with a clogging prevention function in the fitting recess 5d of the anti-vibration rubber 10 is narrower (thinner) than in the conventional case. The upwardly convex arc becomes gentler than before (the positions of the fixing portions 24 and 24'do not change. See FIG. 6). Therefore, the uneven distribution of the vibrating sieve net 2 of the sieved body in the left-right direction is prevented as much as possible. can do.

In the stretched state, the motor M is driven to vibrate the vibrating upright plates 6 and 6'along the elliptical orbit in the direction of arrow C. Then, as shown in FIG. 4, the vibrating sieve net 2 on the upper side of the vibrating sieve net 1 with the clogging prevention function vibrates along the elliptical orbit, and the tapping net 4 is combined with the anti-vibration rubber 10. With the anti-vibration rubber 10, the central portion vibrates in the vertical direction (arrow D direction) with the largest amplitude (stroke), and is tapped over substantially the entire lower side of the vibrating sieve net 2. Repeat. At this time, each anti-vibration rubber 10 is fitted in the fitting recess 5d on the lower surface of the thin plate strip-shaped fixing plate 5, and the vibrating sieve net 2 is tensioned in the left-right direction (left-right opposite direction) and upward. It is in a state of being hung. Therefore, in each of the anti-vibration rubbers 10, each head 10a is in a state of being strongly in contact with the fitting recess 5d and the lower surface 5b of the thin plate strip-shaped fixing plate 5, so that both vibration upright plates 6 and 6'. Vibrates in the direction of arrow C, and even if the entire vibrating sieve net 1 with a clogging prevention function vibrates in the direction of arrow C, each of the anti-vibration rubbers 10 stays in the fitting recess 5d of the thin plate strip-shaped fixing plate 5. The fitted state is maintained, and therefore, together with the vibrating upright plates 6 and 6', the vibrating sieve net 1 with a clogging prevention function, each anti-vibration rubber 10, a support rod 11, and a fixing horizontal rod 8 are integrated. And vibrate.

The orbit of vibration is not limited to the elliptical orbit described above, and various vibrations such as a circular orbit, a vibration along a straight orbit in the vertical direction, and a vibration along a straight orbit in the diagonal vertical direction can be considered.

In this state, for example, aggregate is charged from the charging port 7a of the vibrating sieve device 7. The aggregate thrown into the net 1 from above the vibrating sieving net 2 falls onto the vibrating sieving net 2, and the sieving operation is performed by vibration along the elliptical orbit of the vibrating sieving net 2. .. That is, aggregates smaller than the squares of the vibrating sieve net 2 pass through the vibrating sieve net 2 and fall downward to be accumulated, and aggregates larger than the squares are indicated by arrows on the vibrating sieve net 2. It moves in the I direction, moves in the arrow F direction from the outlet 7b, and is transferred by a conveyor or the like (not shown). By such an operation, sieving can be performed by the vibration sieving net 2.

Here, the tapping net 4 constantly vibrates in the vertical direction on the lower surface of the vibrating sieve net 2, so that the upper surface of the tapping net 4 constantly taps a wide range of the lower surface of the vibrating sieve net 2. Therefore, even if fine particles adhere to the squares of the vibration net 2 and block the squares, the squares are immediately beaten by the tapping net 4 from below, so that the particles that block the squares are Due to the vibration of the tapping, it immediately separates from the square and falls and accumulates downward.

Since the size of the squares of the tapping net 4 is larger than the squares of the vibrating sieve net 4 (for example, 16 times the size), the particles separated from the squares of the vibrating sieve net 2 are the particles separated from the squares of the vibrating sieve net 4. It can easily pass through the squares and fall and accumulate downward.

Further, the tapping net 4 repeatedly taps the synthetic resin horizontal line 2a on the lower side of the vibrating sieve net 2 from the lower side, but the synthetic resin horizontal line 2a is shown in FIGS. As shown in FIG. 7B, since the thickness of the covering portion 22 below the core wire 3 is large, the core wire 3 is not easily exposed from the covering portion. The use of the vibrating sieve net 2 can be continued for a long period of time, and the life of the vibrating sieve net 2 and the life of the vibrating sieve net 1 with a clogging prevention function can be extended.

Further, since the cross-sectional shape of the synthetic resin horizontal wire 2a below the core wire 3 is configured so that the corner portions 23 and 23 are at right angles (see FIG. 7B), the tapping net 4 is used. Even if the core wire 3 moves downward from the position shown in FIG. 7B by being in contact with the core wire 3, the core wire 3 has a shape that is less likely to be exposed than the covering portion of the synthetic resin horizontal wire 2a. The life can be extended.

In the present invention, as described above, the vibration sieve net 1 with a clogging prevention function is vibrated by fixing both ends of the synthetic resin horizontal wire 2a to a pair of vibration upright plates 6, 6'. A vibration net with an upper clogging prevention function in a state where it is stretched on the sieve device 7 and the lower side corresponding to the thin plate strip-shaped fixing plate 5 is supported by a support member (for example, anti-vibration rubber 10, support rod 11, etc.). When 1 is vibrated, the tapping net 4 between the thin plate strip-shaped fixing plates 5 vibrates in the vertical direction with the central portion as the maximum stroke, and taps the lower side of the vibrating sieve net 2. It is possible to effectively prevent the clogging of 2.

Further, since the vibrating sieve net 2 and the tapping net 4 are integrated, even if the vibrating sieve net 1 with a clogging prevention function is installed at an angle to the vibrating sieve device 7, the spheres are unevenly distributed as in the conventional case. There is no such thing, and the clogging prevention function is not reduced.

Further, since the fitting recess 5d is formed on the lower side of the thin plate strip-shaped fixing plate 5, and the head portion 10a of the support member (for example, the anti-vibration rubber 10 or the like) is fitted into the fitting recess 5d, the support member. The vertical thickness of the vibrating sieve net 2 at the contact position can be reduced, and when the vibrating sieve net 1 with a clogging prevention function is stretched on the vibrating sieve device 7, the vibrating sieve net 2 is above the vibrating sieve net 2. The convex arc can be formed more gently than in the conventional device, and the uneven distribution of the sieved body to the left and right can be prevented as much as possible.

Further, since the synthetic resin horizontal wire 2a on the lower side of the vibrating sieve net 2 is configured to have a larger wall thickness 22 on the lower side than the core wire 3, the life of the vibrating sieve net 2 can be maintained for a long time. ..

Further, when the vibrating upright plates 6 and 6'are vibrated in the vertical direction including the elliptical locus or the like and in the diagonal vertical direction, the tapping net 4 between the thin plate strip-shaped fixing plates 5 vibrates in the vertical direction with the central portion as the maximum stroke. However, since the lower side of the vibrating sieve net 2 is tapped, it is possible to realize a vibrating sieve device that can effectively prevent clogging of the vibrating sieve net 2.

The vibrating sieve net with a clogging prevention function according to the present invention can make a convex arc gently on the net when the vibrating sieve net is stretched on the vibrating sieve device, and is used for the vibrating sieve. Since the life of the net can be maintained for a long time, it is expected to be widely used.

1 Net for vibrating sieve with clogging prevention function 2 Net for vibrating sieve 2'Intersection 2a Synthetic resin horizontal wire 2b Synthetic resin vertical wire 3 Core wire 4 Tapping net 4c Edge edge 4c'End edge 5 Thin plate strip-shaped fixing plate 5' , 5 "Lower edge 5b Lower surface 5c Lower central part 5d Fitting recess 6, 6'Vibration upright plate 8 Fixing horizontal rod 10 Anti-vibration rubber 10a Head 11 Support rod

Claims (4)

A plurality of parallel synthetic resin vertical lines having no core wire and a plurality of parallel synthetic resin horizontal wires intersecting these synthetic resin vertical wires on the lower side and having a metal core wire embedded therein. A vibrating sieve net that is heat-welded and integrated at these intersections is stretched on the vibrating sieve device with both side edges parallel to the synthetic resin vertical line, and the vibrating sieve net. A vibrating sieve with a clogging prevention function is stretched in an arc shape that is convex upward when the support member is brought into contact with the lower side, and the sieved body is sieved by being vibrated by the vibrating sieve device. In the network
A plurality of thin plate strip-shaped fixing plates having a constant width are fixed under the vibrating sieve net parallel to the synthetic resin vertical line at predetermined intervals, and the vibrating sieve net and the thin plate strip-shaped fixing plate are fixed. A synthetic resin beating net having a square larger than the square of the vibrating sieve net is arranged on the lower side.
The tapping net is fixed to the thin plate strip-shaped fixing plate only at the lower position of the thin plate strip-shaped fixing plate, and is connected to the lower side of the vibrating sieve net in the range between the adjacent thin plate strip-shaped fixing plates. Is not
By removing the tapping for networks in the lower central portion of each thin plate strip fixed plate, fitting recess the head of the support member is fitted into the lower central portion is formed,
In a state where the head of the support member is fitted into the fitting recess, the head is configured to be able to come into contact with the lower surface of the thin plate strip-shaped fixing plate.
The vibrating sieving net is vibrated at the time of being stretched on the vibrating sieving device, so that the beating net vibrates up and down, and the synthetic resin horizontal wire is struck by the beating net.
A vibrating sieve net with a clogging prevention function, wherein the cross-sectional shape of the synthetic resin horizontal wire is configured so that the thickness is thicker on the lower side than the upper side of the core wire. One of the tapping nets is fixed to the corresponding lower edge of the one thin plate strip-shaped fixing plate, and the other edge is adjacent to the one thin strip strip-shaped fixing plate. strip-shaped fixing plate of the corresponding lower end anti-clogging mechanism with vibrating screen for the network defined in claim 1, wherein those fixed to the edge. The cross-sectional shape of the synthetic resin horizontal wire is a square shape in which the upper side of the core wire is a semicircular shape and the lower side of the core wire is a square shape having one side in the vertical direction longer than the radius of the semicircular shape. The described net for vibrating sieve with clogging prevention function. A vibrating sieve device using the vibrating sieve net with a clogging prevention function according to claim 1.
Both ends of the vibrating sieve net with a clogging prevention function parallel to the synthetic resin vertical line are stretched on a vibrating upright plate with tension applied 180 degrees in the horizontal direction toward the opposite side .
By fitting the heads of the plurality of support members fixed to the fixing horizontal rods fixed between the vibrating upright plates into the fitting recesses on the lower side of the vibrating sieve net. , The vibrating sieve net is stretched upward with tension applied so that it has an upwardly convex arc shape.
A driving means for vibrating the vibration upright plate is provided.
By driving the driving means, the vibrating upright plate is vibrated and the tapping net is vibrated up and down, so that the tapping net can be used to strike the lower side of the vibrating sieve net. A vibrating sieving device that uses a vibrating sieving net with a clogging prevention function.

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