JP2019069422A - Net for vibration screen with clogging prevention mechanism and vibration screen device - Google Patents

Abstract

To provide a net for vibration screen with clogging prevention function which can effectively prevent clogging of a net for vibration screen irrespective of an inclination angle of the net for vibration screen.SOLUTION: Provided is a net 1 for vibration screen with clogging prevention function having a net 2 for vibration screen in which a plurality of parallel vertical lines 2b made of synthetic resin having no core wire and a plurality of parallel lateral lines 2a made of synthetic resin which cross the vertical lines made of synthetic resin and in which a metallic core wire 3 is embedded are thermally deposited at an intersection part 2' and are vertically and laterally integrated. Plural thin plate belt-like stationery plates 5 are fixed to a lower side of the net 2 for vibration screen in parallel to the vertical line 2b made of synthetic resin at prescribed intervals, and a beating net 4 made of synthetic resin is provided on a lower side of the net 2 for vibration screen and the thin plate belt-like stationery plate 5. The beating net 4 is fixed to the thin plate belt-lie stationery plate 5 at only a position on a lower side of said thin plate belt-like stationery plate. This net is so configured as not to be connected to a lower side of the net 2 for vibration screen in a range between adjacent thin plate belt-like stationery plates 5, and to be capable of beating the net 2 for vibration screen by the beating net 4.SELECTED DRAWING: Figure 4

Description

  TECHNICAL FIELD The present invention relates to a vibrating screen with a clogging prevention mechanism stretched in an industrial vibrating sieve apparatus and a vibrating sieve apparatus using the same.

  Heretofore, as shown in Patent Document 1, in this type of vibrating screen, a vibrating screen is stretched between frames on both sides of the vibrating screen, and a sieved body is disposed under the vibrating screen. 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 axes and the partition net, and a plurality of spheres are stored inside the storage chamber, When the frame vibrates, the plurality of spheres in the storage chamber strike the vibrating screen from the lower side, thereby preventing clogging of the vibrating screen.

  In addition, there is also a configuration in which a plurality of spheres are attached to the upper surface of the vibrating screen by cords, and the balls are vibrated on the surface of the screen by the vibration of the vibrating screen to prevent clogging of the screen.

JP-A-8-155396

  By the way, the whole of the vibrating screen is installed so that the vibrating screen itself is slightly inclined downward from the upstream side to the downstream side in the flow direction of the screen, but in the above-mentioned conventional vibrating screen Because of this inclination, the above-mentioned spheres will be unevenly distributed to the lower side (downstream side), and unevenness will occur in the tapping position in each storage room or on the surface of the vibrating screen, sufficient eye There is a problem that the clogging prevention effect can not be obtained.

  In addition, depending on the properties of the screen, the vibrating screen may be used with a steep inclination (for example, about 45 degrees), but if it is steeped in this way, uneven distribution of spheres in the storage chamber becomes noticeable. As a result, there is a problem in that it is not suitable for the prevention of clogging of a rapidly inclined vibrating screen net.

  The present invention has been made in view of the above-mentioned conventional problems, and a vibrating screen with a clogging prevention function can effectively prevent clogging of the vibrating screen net regardless of the inclination angle of the vibrating screen net. It is an object of the present invention to provide a screen and a vibrating screen device using the vibrating screen.

In order to achieve the above object, the present invention is
First, a plurality of parallel synthetic resin vertical lines having no core and a plurality of parallel synthetic resin horizontal lines crossing the vertical lines made of synthetic resin and having a metal core embedded therein In a mesh with a clog prevention function having a mesh for vibration sieving which is thermally welded at the intersections thereof and integrated integrally in the vertical and horizontal directions, the mesh made of synthetic resin is parallel to the longitudinal line made of synthetic resin under the mesh for the vibration sieving. A plurality of thin strip-like fixed plates having a predetermined width are fixed at a predetermined interval, and the mesh for the vibrating screen and the synthetic thin mesh larger than the mesh of the vibrating sieve net below the thin band-shaped fixed plate The tapping net is fixed to the thin strip fixing plate only at the lower position of the thin strip fixing plate, and in the range between the adjacent thin strip fixing plates. It is characterized in that it is not connected to the lower side of the vibrating screen. Constituted by the clogging prevention function with vibrating screen for the network that.

  According to this structure, the vibrating screen with a clogging prevention function is stretched on the vibrating screen device by fixing both ends of the synthetic resin horizontal wire to a pair of vibrating vertical plates, etc. When the vibrating vertical plate or the like is vibrated in the vertical direction or the oblique vertical direction including an elliptical locus or the like in a state where the lower side corresponding to the plate is supported by a support member such as anti-vibration rubber, Since the tapping mesh vibrates in the vertical direction with its central portion as a maximum stroke due to elasticity and strikes the lower side of the vibrating screen, clogging of the vibrating screen can be prevented. Further, since the tapping net is integrally formed on the vibrating sieve net, even if the vibrating sieve net with the clogging prevention function is installed in an inclined state, the clogging prevention mechanism can be exhibited without any problem.

  Second, the vibrating sieving mesh in each longitudinal area of a predetermined lateral width along the longitudinal opposite edges of each of the thin plate-like fixed plates is a plurality of continuous in the thermally welded intersections. It is comprised by the mesh for vibrating sieves with a clogging prevention function of the said 1st description in which the non-welding range which made the said crossing part the non-welding crossing part is formed.

  The predetermined lateral width may be, for example, a constant lateral width (A1, A1 '). According to this structure, the vibrating screen with a clogging prevention function is stretched on the vibrating screen device by fixing both ends of the synthetic resin horizontal wire to a pair of vibrating vertical plates, etc. When the vibrating vertical plate or the like is vibrated in the vertical direction or the oblique vertical direction including an elliptical locus or the like in a state where the lower side corresponding to the plate is supported by a support member such as anti-vibration rubber, The tapping net vibrates in the vertical direction with its central part as the maximum stroke due to elasticity and taps the lower side of the vibrating screen, but the vibrating stroke of the tapping net is smaller than that of the central part, or In the longitudinal area where the transmission vibration is small, since the non-welding range of the crossing portion is formed in the vibrating screen net, the tapping effect by a relatively small stroke of the tapping net or even the small transmission vibration is effective. Clogged up It is possible to stop.

  Third, the vibrating screen in each longitudinal area of a predetermined lateral width along the edges on both sides in the longitudinal direction of each thin strip-like fixed plate is a non-welding non-crossing portion with a plurality of continuous intersections as non-welding intersections. The vibrating screen with a clogging prevention function according to the first aspect is configured such that the welding range and the welding range formed by the plurality of continuous intersections are alternately formed.

  According to this structure, the vibrating sieve net with the clogging prevention function is stretched on the vibrating sieve device, and the lower side corresponding to the thin strip-like fixed plate is supported by the support member such as the anti-vibration rubber, When the vibrating vertical plate is vibrated in the vertical direction or the oblique vertical direction including an elliptical locus etc., in the above-mentioned longitudinal direction area where the vibration stroke of the tapping net is small compared to the central part or the transmission vibration is small, Since the welded area and the non-welded area are alternately formed in the mesh, clogging can be effectively prevented even if there is a tapping action by a relatively small stroke of the tapping net or a small transmission vibration.

  Fourth, the vibration sieving nets in each longitudinal area of a predetermined horizontal width along the edges on both sides in the longitudinal direction of each thin strip-like fixed plate are formed with non-welded crossings in a zigzag at each crossing. It is comprised by the mesh for vibrating sieves with a clogging prevention function of the said 1st description which is what.

  According to this structure, the vibrating sieve net with the clogging prevention function is stretched on the vibrating sieve device, and the lower side corresponding to the thin strip-like fixed plate is supported by the support member such as the anti-vibration rubber, When the vibrating vertical plate is vibrated in the vertical direction or the oblique vertical direction including the elliptical locus etc., in the above longitudinal area where the vibration stroke of the tapping net is smaller compared to the central part, staggering at crossing points of the vibrating screen Since the non-welded area is formed in a shape, clogging can be effectively prevented even with a tapping action by a relatively small stroke of the tapping net or a small transmission vibration.

  Fifth, in the vibrating sieve net, both ends of the synthetic resin horizontal wire are stretched between a pair of vibrating vertical plates in a state in which both edges of the synthetic resin horizontal wire are extended in opposite directions, respectively, the tapping The mesh as set forth in any one of the first to fourth, wherein the supporting member is provided in contact with the lower side of the portion fixed to the thin plate-like fixed plate in the mesh. It consists of a vibrating sieve device using.

  The said support member can be comprised, for example by the support rod (11) by which prevention rubber (10) was fixed to the upper end. According to this structure, when the vibrating vertical plate is vibrated in the vertical direction or the oblique vertical direction including the elliptical locus etc., the tapping net between the thin plate-like fixed plates vibrates in the vertical direction with the central portion as the maximum stroke. Since the lower side of the vibrating screen is struck, clogging of the vibrating screen can be effectively prevented.

  In the present invention, a vibrating screen with a clogging prevention function is stretched on a vibrating sieve device by fixing both ends of a synthetic resin horizontal wire to a fixing member such as a pair of vibrating vertical plates, and the thin strip fixing is performed. When the vibrating mesh with the upper clogging prevention mechanism is vibrated while supporting the lower side corresponding to the plate by the supporting member, the tapping net between the thin plate-like fixed plates is vertically moved with the central portion as the maximum stroke. Since the lower side of the vibrating screen is beaten, clogging of the vibrating screen can be effectively prevented.

  Further, since the vibrating screen net and the tapping net are integrated, even if the vibrating screen net with clogging prevention function is installed in an inclined manner on the vibrating screen device, the balls are not unevenly distributed as in the prior art, The clogging prevention function does not deteriorate.

  Further, in the longitudinal area on both sides of the thin strip-like fixed plate having a smaller vibration stroke as compared with the central portion of the tapping net, the non-welding range is formed at the intersection of the vibrating screen net, so Can effectively prevent clogging even with a relatively small stroke of the tapping mesh or small transmission vibration, and high clogging prevention effect over substantially the entire surface of the vibrating screen mesh. It can be demonstrated.

  In addition, in the longitudinal direction areas on both sides of the thin strip-like fixed plate having a smaller vibration stroke as compared with the central portion of the tapping net, the non-welded areas are formed in a zigzag at the intersections. Clogging can be effectively prevented even with a tapping action with a very small stroke, and high clogging can be exhibited over substantially the entire surface of the vibrating screen.

  In addition, when the vibrating vertical plate is vibrated in the vertical direction or the oblique vertical direction including an elliptical locus etc., the tapping net between the thin plate-like fixed plates vibrates in the vertical direction with the central portion as the maximum stroke, and the vibrating sieve net Thus, it is possible to realize a vibrating screen device which can effectively prevent the clogging of the vibrating screen net by tapping the lower side.

(A) is a partially cutaway plan view of the mesh for vibrating sieve with clogging prevention function according to the present invention, and (b) is a side view of the same mesh for vibrating sieve as described above, in which the position of anti-vibration rubber is described. is there. It is a bottom view of the mesh with the same above-mentioned clogging prevention function as a vibrating screen (a vibrating screen is omitted). It is a partial disassembled perspective view of the mesh with the same above-mentioned clogging prevention function. It is a side view of the net which shows the tapping state of the net for vibration sieves with a clogging prevention mechanism same as the above. It is a cross-sectional view of the vibrating sieve device at the time of equipping a vibrating sieve device with a vibrating sieve net with a clogging prevention mechanism same as the above. It is sectional drawing which shows the fixing structure to the vibrating sieve apparatus of the edge part of the mesh screen with a clogging prevention function same as the above. It is a side view of a vibrating sieve device using a vibrating screen with a clogging prevention mechanism same as the above. It is an enlarged view of the vibrating screen which shows the zigzag non-welding part in the mesh with a screen same as the above with a clogging prevention function. It is an enlarged view of the mesh for vibrating sieves which shows the non-welding range in the mesh | network for vibrating sieves same as the above with the same clogging prevention function. It is a schematic plan view of the same mesh which shows the non-welding range in the mesh with the same above-mentioned clogging prevention function.

Hereinafter, the mesh having a clogging prevention function according to the present invention will be described in detail.
FIG. 1 (a) is a plan view of a vibrating screen mesh 1 with a clogging prevention function, and FIG. 1 (b) is a side view of FIG. 1 (a). The rod 11 is described by a two-dot chain line. In the figure, the vertical direction (direction of arrow A) is referred to as "longitudinal direction", the direction perpendicular to the vertical direction is referred to as "horizontal direction", and when installed in the vibrating screen device, the vertical direction (direction of arrow A) The sieve body shall move.

  According to the present invention, a screen 1 for a vibrating screen with anti-clogging function includes a vibrating screen 2 for a small square mesh on the upper side, a tapping mesh 4 for a large square on the lower side, and the tapping mesh 4. It is comprised from the thin-plate strip-shaped fixed plate 5 for connecting to the back surface side of the said screen 2 for vibration sieves. Therefore, in the following description, when the whole mesh is shown, it is referred to as “vibration sieve net 1 with clogging prevention mechanism”, and when only the upper vibration sieve net 2 is shown, it is referred to as “vibration sieve net 2”. When only the lower tapping mesh 4 is shown, it is referred to as "tapping mesh 4".

  Here, the horizontal line of the vibrating screen 2 is referred to as "synthetic resin horizontal line 2a", and a metal core 3 is embedded in the center of the synthetic resin horizontal line 2a (see FIG. 3). ). The longitudinal line of the vibrating screen 2 is referred to as "synthetic resin longitudinal line 2b", and no core wire is embedded in the synthetic resin longitudinal line 2b. Further, the horizontal line of the tapping net 4 is referred to as "synthetic resin horizontal line 4a", and the vertical line of the tapping net 4 is referred to as "synthetic resin vertical line 4b".

  The synthetic resin horizontal lines 2a and 4a and the synthetic resin vertical lines 2b and 4b are both made of urethane, and the thin plate-like fixed plate 5 is also made of urethane.

  Moreover, in FIG. 1, in order to make the structure intelligible, the area of the tapping net 4 below the area of the vibrating sieve net 2 on the upper side is drawn wide as in the exploded view. The vibrating screen 2 and the tapping screen 4 have the same area as the vibrating screen net 1 with a sheet clogging prevention function, and between the vibrating screen 2 and the tapping screen 4 in the longitudinal direction, A plurality of the thin strip-like fixed plates 5 (horizontal width t1) are arranged parallel to the direction and at regular intervals t2 in the horizontal direction (see FIG. 4). The length in the longitudinal direction of the thin strip-like fixed plate 5 is formed to be the same as the length in the longitudinal direction of the mesh 1 for a vibrating screen with a clogging prevention mechanism.

  As shown in FIG. 1, the vibrating screen 2 intersects a plurality of parallel synthetic resin longitudinal lines 2b without core and the synthetic resin longitudinal lines 2b, and the core 3 is made of metal. And a plurality of parallel synthetic resin horizontal lines 2a embedded therein are heat-welded at their intersections 2 'to form a net which is integrated vertically and horizontally.

  On the lower side of the vibrating screen 2, a thin strip-shaped fixed plate 5 having a constant width t1 is provided in parallel with the synthetic resin longitudinal line 2b at a predetermined interval (in the embodiment, the interval t2, see FIG. 4). It is fixed. More specifically, the thin plate-like fixed plate 5 is a flexible urethane plate having a thickness of about 2 mm to 3 mm, and the upper surface 5a thereof is fixed to the synthetic resin horizontal line 2a of the vibrating screen 2 by heat welding. It is done. The thin plate-like fixing plate 5 is fixed in parallel to the synthetic resin vertical wire 2b, and provided in parallel with each other at the interval t2 in the lateral direction of the vibrating screen 2 ( See Figure 5).

  Therefore, although only two thin plate-like fixed plates 5 appear in FIG. 1, actually, as shown in FIG. 5, a plurality of thin plate-like fixed plates 5 are provided along the horizontal direction of the vibrating screen 2 at intervals t2. It is provided. In the embodiment of FIG. 5, the thin strip-shaped fixed plates 5 are provided at three positions of the support bar 11 of the vibration-proof rubber 10, respectively. A plurality of the anti-vibration rubbers 10 may be provided longitudinally along the lower surface of the thin plate-like fixing plate 5 as shown by a circular broken line in FIG. It may be formed to have a vertically elongated shape along with the lower surface of the thin strip-like fixed plate 5 to be supported. Further, as shown in FIG. 1, a thinner urethane fixing plate 5 ′ may be provided on the lower surface of the thin plate-like fixing plate 5 for height adjustment.

  Below the vibrating screen 2 and the thin plate-like fixed plate 5, a tapping mesh 4 for removing clogging of a mesh larger than the mesh 2 of the vibrating screen 2 is provided.

  This tapping network 4 is a synthetic resin horizontal line 4a parallel to the synthetic resin horizontal line 2a of the vibrating screen 2 and a synthetic resin vertical line parallel to the synthetic resin vertical line 2b of the vibrating screen 2 The crossing portions 4 'of the synthetic resin horizontal line 4a and the synthetic resin vertical line 4b are all fixed by heat welding, whereby a tapping net 4 is constituted. The diameter of each line 4a, 4b of the tapping mesh 4 is larger than the diameter of the vertical and horizontal lines 2a, 2b of the vibrating screen 2, and the diameter is about 2 times to about 2.5 times larger than that of the vibrating screen. Have Further, one grid of the tapping mesh 4 is configured to have about 16 times the size of one grid of the vibrating sieve grid 2.

  Such a tapping net 4 is fixed to the back surface 5b of the thin strip-like fixing plate 5 only at the lower position of the thin strip-like fixing plate 5, and in the range between the adjacent thin strip-like fixing plates 5 and 5 Are not connected (fixed) to the lower side of the vibrating screen 2. More specifically, the synthetic resin vertical line 4b of the tapping network 4 located below the thin strip-like fixing plate 5 is fixed to the lower surface of the thin strip-like fixing plate 5 by heat welding, and other synthetics The vertical wire 4b made of resin is not connected to the vibrating screen 2 under the vibrating screen 2, and is in a free state. That is, a constant gap is formed between the synthetic resin horizontal line 2a of the vibrating screen 2 and the synthetic resin vertical line 4b of the tapping network 4.

  Therefore, as shown in FIG. 5, when the vibrating screen device 7 (to be described later) is stretched and the device is vibrated, as shown in FIG. The tapping network 4 vibrates in the vertical direction, and when it vibrates upward, it abuts on the vibrating screen 2 on the upper side from the lower side and strikes, and as a result, the clogging of the vibrating screen 2 occurs. Can be eliminated.

  Furthermore, longitudinal direction areas S and S 'of the vibrating screen 2 at constant lateral widths A1 and A1' (see FIG. 1) along the edges 5c and 5c 'on both sides in the longitudinal direction of the thin plate-like fixed plates 5 and 5 respectively. (Refer to FIG. 5 and FIG. 10), as shown in FIG. 9, a non-welding square having a plurality of successive crossings as the non-welding crossings 2 ′ ′ in the heat-sealed crossings 2 ′. A range E1 is formed.

  That is, the longitudinal area of the vibrating sieve net 2 at a constant (predetermined) width A1, A1 '(see FIG. 1) along the edges 5c, 5c' on both sides in the longitudinal direction of the thin strip-like fixing plates 5, 5 S, S '(refer to FIG. 5 and FIG. 10) are formed by the non-welding range E1 in which the plurality of continuous intersections are regarded as the non-welding intersection 2 ′ ′ and the plurality of continuous welding intersections 2 ′ And the welding area E2 is alternately formed (refer to FIG. 10) In addition, in FIG. The part shows a non-welded non-welded intersection part 2 ′ ′ which is not heat-welded (the same applies to FIG. 8).

  Alternatively, the longitudinal area S of the vibrating screen 2 at a constant (predetermined) width A1, A1 '(see FIG. 1) along the edges 5c, 5c' on both sides in the longitudinal direction of the thin strip-like fixing plates 5, 5 , S ′ (see FIGS. 5 and 10) may be configured such that non-welded intersections 2 ′ ′ are formed in a zigzag at each intersection as shown in FIG.

  The longitudinal areas S and S 'of the constant lateral widths A1 and A1' of the vibrating screen 2 are smaller in vibration stroke of the tapping screen 4 than in the central portion of the tapping screen 4, or The vibration due to beating of the tapping net 4 in the central portion is also transmitted to the longitudinal direction areas S and S 'and the vibrating screen net of the areas S and S' is also vibrated. Since the vibration is small, the clogging prevention effect by tapping is reduced. Therefore, by providing the non-welding range E1 or the non-welding non-welding intersection portion 2 ′ ′ in the vertical direction areas S and S ′, clogging is easily eliminated also in the vertical direction areas S and S ′. Is configured as.

  As shown in FIG. 5, in the mesh 1 for vibration sieving with clogging prevention mechanism, both edges 2a 'and 2a' of the synthetic resin horizontal line 2a are extended in opposite directions (arrows B and B '). In the state, it is stretched between a pair of parallel vibrating vertical plates 6, 6 'of the vibrating sieve device 7 and is supported below the portion of the tapping mesh 4 fixed to the thin strip fixed plates 5, 5. The anti-vibration rubber 10 on the rod 11 is in a contact state. In FIG. 5, reference numeral 8 denotes a fixing weir for fixing the support rod 11. As described above, a plurality of the above-described vibration-proof rubbers 10 may be provided in the vertical direction, or a single vibration-proof rubber long in the vertical direction may be used. Further, a plurality of the support rods 11 may be provided corresponding to the anti-vibration rubber 10, or may be a plate-like member (support column 11) long in the vertical direction.

  As shown in FIG. 7, in the vibrating sieve device 7, the vibrating vertical plates 6 and 6 ′ are vibratably supported by the supporting devices 12 and 12 on a 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 vibrating vertical plates 6, 6 ', and a driving belt 15 is stretched around 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 rotary body 14a of the vibrator 14, and the vibrator 14 vibrates by driving the motor M to rotate the rotary body 14a, and as a result, the vibrator 14 vibrates. The vibrating vertical plate 6, 6 'vibrates, whereby the screen 1 for a vibrating screen with a clogging prevention function stretched between the vibrating vertical plates 6, 6' (shown by a two-dot chain line in FIG. 7) Can be vibrated.

  The direction of vibration is, for example, vibration along an elliptical orbit around a central axis P inclined 45 degrees with respect to the vertical, as shown by arrow C in FIG. 7, and the clogging along the elliptical orbit The vibrating screen with prevention function 1 vibrates.

  As shown in FIG. 6, the left and right end portions of the screen 1 for a vibrating screen with a clogging prevention function are fixed between the vibrating vertical plates 6, 6 '. In addition, since the fixing structure of the left and right side edges of the mesh 1 with a clogging preventing function is left-right 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 to the inside of the vibrating vertical plates 6, 6 ', and the upper end 16a of the clapping bar 16 is used as a fulcrum at the upper part of the L-shaped angle 19 A tension bolt 17 is provided obliquely inward from the inside of the clapping bar 16, and an end of the tension bolt 17 penetrates the vibrating vertical plate 6 to extend to the vibrating vertical plate 6. It is being fixed by the nut 18 in the outer side of.

  In such a structure, hooks 20 are fixed to the left and right side edges of the mesh 1 with a clogging prevention function, and the hooks 20 are engaged with the lower end portion 16b of the clapping bar 16, and the tension bolt 17, the hook 20 is held between the lower end portion 16b and the upper surface 19a of the L-shaped angle 19 to prevent the clogging between the pair of vibrating vertical plates 6, 6 '. The attached vibrating screen 1 is stretched. Then, by screwing in the tension bolt 17, a tension in the directions of arrows B and B 'is applied to the vibrating sieve net 1.

  Then, as shown in FIG. 5, the tension is applied to the mesh 1 with a clogging prevention function in the opposite direction (directions of arrows B and B '), and it is positioned below the mesh 2 for a vibration sieve. A plurality of support rods 11 are erected from the lower side of the vibrating screen net 1 to the corresponding position of the thin strip-like fixed plate 5 on the fixed horizontal gauze 8 to be fixed. It fixes and each said vibration-proof rubber 10 is contact | abutted from the bottom to the tapping net | network 4 below the said thin strip-shaped fixed plate 5 of the said mesh | network 1 for vibration sieves with a clogging prevention mechanism. Then, by forming the support rod 11 at the center slightly longer than the support rods 11 on both sides, the central portion of the vibrating screen net 1 is slightly lifted, and as a whole, the center is slightly raised. It is stretched so as to be convex (see FIG. 5).

  In the vibrating sieve device 7, raw materials such as aggregate are fed from the inlet 7 a, and in the device 7, as shown by a two-dot chain line, a meshing screen 1 for clogging prevention is installed. The raw material introduced from the inlet 7a is sieved by the mesh screen 1 with clogging prevention function, and the raw material (the body to be sieved) on the net 1 proceeds in the direction of arrow I from the outlet 7b. It is configured to be discharged in the arrow F direction.

  Since the screen 1 for a vibrating screen with a clogging prevention function of the present invention is configured as described above, the vibrating screen net 1 with a clogging prevention function according to the present invention is shown in FIG. It is stretched between the vibrating vertical plates 6, 6 ', and the motor M is driven to vibrate the vibrating vertical plates 6, 6' along an elliptical orbit in the arrow C direction. Then, as shown in FIG. 4, the vibrating screen 2 on the upper side of the vibrating screen 1 with a clogging prevention function vibrates along the above-mentioned elliptical trajectory, and the tapping net 4 prevents the above-mentioned rubber 10 and The center part is vibrated in the vertical direction (direction of arrow D) with the largest amplitude (stroke) between the rubber rubber 10 and the tapping is repeated over substantially the entire lower side of the vibrating screen 2. Do. The vibration trajectory of the vibrating screen 1 with anti-clogging mechanism is not limited to the above-mentioned elliptical trajectory, but various kinds such as circular trajectory, vibration along vertical linear trajectory, vibration along oblique vertical linear trajectory, etc. Vibration of the

  In this state, for example, an aggregate is input from the input port 7 a of the vibrating sieve device 7. The aggregate introduced from the upper side of the vibrating screen 2 to the screen 1 falls onto the vibrating screen 2 and the sieving operation is performed by the vibration along the elliptical orbit of the vibrating screen 2. . That is, aggregates smaller than the size of the mesh of the vibrating screen 2 pass through the vibrating mesh 2 and fall downward and are accumulated, and the aggregates larger than the size of the mesh are arrows on the vibrating mesh 2 It moves in the I direction, moves in the direction of arrow F from the outlet 7b, and is transported by a conveyer (not shown) or the like. By this operation, it is possible to screen with the vibrating screen 2.

  Here, on the lower surface of the vibrating screen 2, the tapping network 4 always vibrates in the vertical direction so that the upper surface of the tapping screen 4 always strikes a wide area of the lower surface of the vibrating screen 2. Therefore, even if fine particles adhere to the grid of the vibrating net 2 and close the grid, the grid is immediately beaten from the lower side by the tapping net 4, so the particles that blocked the grid are the same. Due to the vibration of the tapping, it immediately separates from the square and drops downward and accumulates.

  Since the size of the grid of the tapping mesh 4 is larger than that of the vibrating screen 4 (for example, 16 times the size), the particles separated from the grid of the vibrating screen 2 are the tapping mesh 4. The cell can easily pass through and fall down and accumulate.

  The stroke in the vertical direction of the tapping net 4 is small at the longitudinal areas S and S 'along the edges of both sides of the thin plate-like fixed plate 5 of the vibrating screen 2, or the vibrating screen 2 Since the vibration transmitted from the central part of the sheet is small, the effect of preventing clogging by tapping is reduced compared to the central part, but in the longitudinal direction areas S and S ', as shown in FIG. Are alternately provided in the longitudinal direction along the both sides of the thin strip-like fixed plate 5 with the welding range E2.

  Therefore, in the non-welding range E1, the non-welding intersection portion 2 ′ ′ is not heat-welded, so even if the particles clog the grid in this range E1, the synthetic resin horizontal line 2a at the non-welding intersection portion 2 ′ ′ And the vertical line 2b made of synthetic resin can be easily separated up and down. Therefore, the particles that have closed the grid can be easily dropped downward even by a weaker force than the tapping network 4 or a weak vibration as compared with the vibration of the central portion of the vibrating screen 2.

  That is, as shown in FIG. 9, in the non-welding range E1, the non-welding intersection 2 ′ ′ is not heat-welded, so in the plurality of non-welding intersections 2 ′ ′ with respect to the plurality of synthetic resin vertical lines 2b. Therefore, a plurality of synthetic resin horizontal lines 2a crossing it can be separated downward as a whole, and an effect such that the area of one mesh is substantially expanded is exhibited, and a weaker tapping force is exerted in the non-welding range E1. As a result, aggregate (small particles and the like) can be easily dropped downward, and clogging can be effectively prevented.

  Such an effect can be exhibited respectively in a plurality of longitudinal areas S and S 'of the horizontal widths A1 and A1' along the plurality of thin plate-like fixed plates 5 in FIG. The net 1 covers substantially the entire vibration sieving net 2 including longitudinal areas S and S ′ of the horizontal widths A1 and A1 ′ on both sides of the thin strip-like fixed plate 5 with a small stroke of the tapping net 4. Clogging can be effectively prevented and eliminated.

  Also, as shown in FIG. 8, even when the non-welded intersections 2 ′ ′ are formed in a zigzag at the intersections of the longitudinal areas S and S ′ of the predetermined horizontal widths A 1 and A 1 ′, the same effect is obtained. If the non-welding intersections 2 ′ ′ are arranged in a staggered manner, as shown in FIG. 8, the grids of that portion will substantially spread by about four times. Even with a weaker tapping force, or with a weaker oscillation than in the central part, particles that have easily blocked the grid can be dropped downward. That is, also in the case of the staggered arrangement, as shown in FIG. 10, in the longitudinal areas S and S ′ of the horizontal widths A1 and A1 ′, since the crossing portions are not heat welded in a zigzag manner, A doubled effect can be exerted, and clogging can be effectively prevented in the above areas S and S ′ by a weaker tapping force or by a weaker vibration.

  Such an effect can be exhibited respectively in the range of the longitudinal direction areas S and S 'along the plurality of thin plate-like fixed plates 5 in FIG. It is possible to effectively prevent clogging of the entire vibration sieving mesh 2 including the longitudinal areas S and S ′ on both sides of the thin strip-like fixed plate 5 with a small stroke of the mesh 4.

  Moreover, even if the clog-preventing vibrating screen net 1 is inclined and disposed as compared with the case where the conventional spherical tapping balls are used, the tapping action by the tapping net 4 has no effect at all, so vibration is caused. Even when the sieve screen is used in an inclined state, it can be used without any problem.

  As described above, according to the present invention, vibration is fixed by fixing the mesh-forming screen 1 having a clogging prevention function to the fixing members such as the pair of vibrating vertical plates 6, 6 'at both ends of the synthetic resin horizontal line 2a. When the vibration network with a clogging prevention mechanism 2 is vibrated in a state in which the lower side corresponding to the thin plate-like fixed plate 5 is supported by the support member while being stretched on the sieve device 7, Since the tapping mesh 4 of 5 vibrates vertically with the central portion as the maximum stroke and strikes the lower side of the vibrating screen 2, the clogging of the vibrating screen 2 is effectively prevented. it can.

  In addition, since the vibrating screen 2 and the tapping network 4 are integrated, even if the vibrating screen 7 with a clogging prevention function is installed obliquely to the vibrating screen device 7, the spheres are unevenly distributed as in the prior art. And the anti-clogging function does not deteriorate.

  In addition, non-welding range E1 is formed at the intersection of vibrating sieving mesh 2 in longitudinal areas S and S ′ on both sides of thin strip-like fixed plate 5 having a smaller vibration stroke compared to the central portion of tapping net 4. Therefore, in the longitudinal area, clogging can be effectively prevented even if the tapping action by the relatively small stroke of the tapping net 4 or the small transmission vibration of the vibrating sieve net 2 is performed. The high clogging prevention effect can be exhibited over substantially the entire surface of the vibrating screen 2.

  Further, in the longitudinal direction areas S and S ′ on both sides of the thin strip-like fixed plate 5 having a smaller stroke as compared with the central portion of the tapping net 2, the non-welding ranges E1 are formed in a zigzag at crossing points. The clogging can be effectively prevented even with the tapping action by the relatively small stroke of the tapping mesh 4 or the small transmission vibration, and the high clogging prevention effect over substantially the entire surface of the vibrating sieve net 2 Can be demonstrated.

  In addition, when the vibrating vertical plates 6, 6 'are vibrated in the vertical direction or the oblique vertical direction including the elliptical locus etc., the tapping net 4 between the thin plate-like fixed plates 5 vibrates in the vertical direction with the central portion as the maximum stroke. Further, since the lower side of the vibrating screen 2 is struck, it is possible to realize a vibrating screen device that can effectively prevent the clogging of the vibrating screen 2.

  Although the material of the mesh for vibrating sieve with clogging prevention function is urethane, it may be other material as long as it is a synthetic resin. In addition, although the longitudinal areas S and S 'are provided with a constant width (horizontal widths A1 and A1') in the vertical direction, the width of the vertical areas may not necessarily be constant. For example, depending on the position in the vertical direction , A wide area in the lateral direction, a narrow area may be provided.

  The vibration sieving screen with anti-clogging mechanism according to the present invention is expected to be widely used because it can exhibit anti-clogging effect over substantially the entire surface of the vibrating sieving screen even when installed in an inclined state. Ru.

DESCRIPTION OF SYMBOLS 1 Vibration screen with clogging prevention mechanism 2 Mesh 2 'for vibration sieve 2 Crossed part 2 "Non-welded crossing part 2a Synthetic resin horizontal wire 2b Synthetic resin vertical wire 3 Core wire 4 Wired net 5 Thin strip fixed plate 6, 6 'Vibration vertical plate 10 Anti-vibration rubber 11 Support rod E1 Non-welding range E2 Welding range S, S' Longitudinal area A1, A1 'Width

In order to achieve the above object, the present invention is
A plurality of parallel synthetic resin vertical lines having no core, and a plurality of parallel synthetic resin horizontal lines crossing the vertical lines made of synthetic resin and having a metal core embedded therein, In a mesh screen with a clogging prevention function having a vibrating screen net which is heat-welded in one part in a vertical and horizontal direction, a thin plate of a fixed width parallel to the longitudinal line made of synthetic resin under the mesh of the vibrating screen. A plurality of strip-like fixing plates are fixed with a predetermined interval, and the mesh for tapping is made of a mesh of synthetic resin having a size larger than that of the mesh for the vibrating screen and the mesh for the vibrating screen below the mesh for the vibrating screen. And the tapping mesh is fixed to the thin strip fixing plate only at the lower position of the thin strip fixing plate, and in the range between the adjacent thin strip fixing plates what der those not connected to the lower side of said vibrating sieve for network The both sides of the synthetic resin horizontal wire can be stretched between a pair of vibration vertical plates in a state in which both edges of the synthetic resin horizontal wire are extended in opposite directions, and A plurality of support members fixed to the vibrating vertical plate with fixing levers are provided in contact with the vibrating vertical plate below the portions fixed to the thin plate-like fixed plates in the tapping net. , And the thin plate is constructed so as to be stretched between the vibrating vertical plates so that the central portion of the vibrating sieve net is lifted upward in a gentle arc shape, and based on the vibration of the vibrating vertical plates, the thin plate It is characterized in that it is possible to strike the lower surface of the vibrating screen net with the tapping net by vibrating the tapping net in the vertical direction between the fixed plates in the vertical direction. It is composed of a mesh screen with a clogging prevention function.

Fifth, and the pair of vibration vertical plate for fixing respectively both ends of the synthetic resin horizontal in stretched state in which each extend in opposite directions both edges of the synthetic resin horizontal line above the vibrating screen for network, the In the vibrating sieve net fixed to the vibrating longitudinal plate with the fixing weir and stretched between the pair of vibrating longitudinal plates, the tapping mesh of the vibrating sieve net Abuts on the lower side of the portion fixed to each of the thin plate-like fixed plates in the above, and lifts the vibrating sieving screen upward, so that the central portion of the vibrating sieving screen becomes a gentle arc shape lifted upward A plurality of support members for further stretching the vibrating screen net between the pair of vibrating vertical plates, a vibrator for vibrating the vibrating vertical plate, and a motor for driving the vibrator And vibrate the vibrating vertical plate by the motor And the thin plate-like fixing plate is vibrated in the vertical direction so that the lower surface of the vibrating screen can be struck by the thin plate. It comprises with the vibrating sieving apparatus using the mesh with a clogging prevention mechanism in any one of the said 1st- 4th.

The support member may be formed of, for example, a support rod vibration-proof rubber at an upper end (10) is fixed (11). According to this structure, when the vibrating vertical plate is vibrated in the vertical direction or the oblique vertical direction including the elliptical locus etc., the tapping net between the thin plate-like fixed plates vibrates in the vertical direction with the central portion as the maximum stroke. Since the lower side of the vibrating screen is struck, clogging of the vibrating screen can be effectively prevented.

Claims (5)

A plurality of parallel synthetic resin vertical lines having no core, and a plurality of parallel synthetic resin horizontal lines crossing the vertical lines made of synthetic resin and having a metal core embedded therein, In a clog-preventing vibration sieving net having a vibrating sieving net which is heat-welded in one unit and integrated in the vertical and horizontal directions,
A plurality of thin strip-like fixed plates having a predetermined width are fixed in parallel with the vertical line made of synthetic resin at a lower side of the vibrating sieve net with a predetermined interval, and the vibrating sieve net and the thin strip-like fixed plates On the lower side, a tapping mesh made of synthetic resin, which is larger than that of the above-mentioned vibrating screen, is disposed.
The tapping mesh is fixed to the thin strip fixing plate only at the lower position of the thin strip fixing plate, and is connected to the lower side of the vibrating sieve net in the range between the adjacent thin fixing strips. A screen for a vibrating screen having an anti-clogging function, characterized in that   The vibrating sieving mesh in each longitudinal area of a predetermined lateral width along the longitudinal opposite edges of each of the thin plate-like fixed plates includes a plurality of continuous intersections in the thermally welded intersections. 2. A mesh as set forth in claim 1, wherein a non-welded area having a non-welded intersection is formed.   The vibration sieving mesh in each longitudinal area of a predetermined horizontal width along the edges on both sides in the longitudinal direction of each thin strip-like fixed plate has a non-welding range in which a plurality of consecutive crossings are non-welding crossings; 2. A mesh as set forth in claim 1, wherein the welded areas formed by the plurality of continuous intersections are alternately formed.   The vibrating sieving mesh in each longitudinal area of a predetermined horizontal width along the edges on both sides in the longitudinal direction of each of the thin strip-like fixed plates has a non-welded non-welded intersection formed at each intersection. A vibrating screen with an anti-clogging function according to claim 1. In the vibrating sieve net, both ends of the synthetic resin horizontal wire are stretched between a pair of vibrating vertical plates in a state where both edges of the synthetic resin horizontal wire are extended in opposite directions,
The vibration sieve with a clogging prevention function according to any one of the first to fourth, wherein a support member is provided in a state of being in contact with a lower side of a portion fixed to the thin strip-like fixed plate in the tapping net. Vibrating sieve device using mesh.

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