Vibration sieve device

Abstract

To provide a vibration sieve device having durability and capable of easily performing replacement work of a net body.SOLUTION: An opening 31 is formed for attaching and detaching a clamping bolt 4 to a clamping bar 3. A seat member 32 including a seating face 32c of the clamping bolt 4 at a position retreated from the opening 31 is arranged in a back surface side of the opening 31. By fixing the seat member 32 to a frame 11 by the clamping bolt 4, the clamping bar 3 is fixed to the frame 11.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a vibrating sieve device. [Background technology]

[0002] Vibrating sieve devices are used to separate materials by particle size for a wide range of applications, including soil, aggregates, rubble, incineration ash, mixed construction waste, and waste recycling.

[0003] The vibrating sieve device is used with a mesh body with opening dimensions appropriate for the purpose, but because the materials to be processed are heavy and the volumes to be processed are large, it is important that the mesh body is attached while maintaining an appropriate tension.

[0004] Furthermore, the amount of material being processed may range from several tons to several tens of tons per hour. In such cases, a large vibrating sieve device is employed, and the weight of the mesh is also large, so it is desirable for the structure to allow for easy replacement of the mesh.

[0005] Incidentally, in a conventionally widely used vibrating sieve device, a clamping bar is engaged with the hook portion of the mesh body, the clamping bar is fixed to the frame with a clamping bolt, and the underside of the mesh body is supported on the frame via a cushioning material to attach the mesh body (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2020-65948 A Summary of the Invention [Problem to be solved by the invention]

[0007] However, the above-mentioned conventional vibrating sieve device has the following problems. The round-head bolts used for clamping bolts are prone to wear and have poor durability because the round head is exposed on the surface of the clamping bar and comes into direct contact with the material being processed. The vibrating sieve device is designed to sift the materials being treated as they are being transported. However, in order to avoid creating obstacles in the direction of the material flow, special round-headed clamping bolts are used, and it may be difficult to obtain new bolts if they are damaged or lost. When the clamping bar is installed, the top surface is horizontal, which makes it easy for treated materials to accumulate in that area, making cleaning when replacing the screen difficult. In the case of a vibrating sieve device equipped with two or more screen tiers, the lower screen tier cannot be replaced without first removing the screen tier above it. Because the net is heavy, when replacing it you want to place it on the device and slide it around, but the cushioning material that supports the net is made of rubber, so it doesn't slide easily due to friction. Also, applying excessive force to the net can damage the parts or cause them to wear out.

[0008] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a vibrating sieve device which is durable and allows for easy replacement of the mesh body by solving the problems associated with the conventional vibrating sieve device described above. [Means for solving the problem]

[0009] In order to achieve the above object, the vibrating sieve device of the present invention has a mesh hook portion to which a clamping bar is attached, and the clamping bar is fixed to a frame by a clamping bolt, and the bottom surface of the mesh is supported on the frame via a cushioning material, so that the mesh is attached. In the vibrating sieve device, an opening for attaching and detaching a clamping bolt is formed in the clamping bar, and a seat member having a seat surface for the clamping bolt is disposed on the back side of the opening at a position set back from the opening, and the seat member is fixed to the frame by the clamping bolt, thereby fixing the clamping bar to the frame.

[0010] In this case, the cross-sectional shape of the clamping bar can be formed into a J-shape with one end bent, the bent portion on one end can be engaged with the hook portion of the mesh body, and the clamping bar can be attached so that the straight portion forms an upwardly inclined surface.

[0011] Furthermore, the clamping bolt may be a hexagonal bolt, and the seat member may be formed so that rotation of the hexagonal bolt is restricted in a state in which the hexagonal bolt is inserted into the bolt insertion hole of the seat member.

[0012] Also, the frame that fixes the clamping bar may be formed with an inspection window for attaching and detaching the clamping bolt.

[0013] In addition, in order to achieve the same purpose, the vibrating sieve device of the present invention is a vibrating sieve device in which a clamping bar is engaged with the hook portion of a mesh body, the clamping bar is fixed to a frame with a clamping bolt, and the underside of the mesh body is supported on the frame via a cushioning material, and the mesh body is attached to the frame, and is characterized in that a metal liner member is attached to the cushioning material, thereby preventing direct contact between the mesh body and the cushioning material.

[0014] In this case, the cross-sectional shape of the liner member may be formed into an arc shape with a central angle of 180° or more. Effect of the Invention

[0015] According to the vibrating sieve device of the present invention, it is possible to provide a vibrating sieve device which solves the problems of the conventional vibrating sieve devices, is durable, and allows the replacement of the mesh body to be easily performed. [Brief description of the drawings]

[0016] [Figure 1] 1 is an external view showing an embodiment of a vibrating sieve device according to the present invention; [Diagram 2]2A and 2B are explanatory views of a screen replacement operation of the vibrating sieve device, in which (a) is a cross-sectional view taken along line AA in FIG. 1, and (b) is a cross-sectional view taken along line BB in (a). [Diagram 3] 1A is a front view of the clamping bar of the vibrating sieve device, (a) is a side view, (b) is a side view, (c) is an exploded view of the clamping bar body, (d) is a three-view view of the first component of the seat member, and (e) is an exploded view of the second component of the seat member. [Figure 4] 1A and 1B show a liner member of a cushion material of the vibrating sieve device, where (a1) and (a2) are cross-sectional views, (b) is a perspective view, and (c) is an explanatory view showing the state where it is attached to the cushion material. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a vibrating sieve device according to the present invention will be described with reference to the drawings.

[0018] 1 to 4 show an embodiment of a vibrating sieve device according to the present invention. This vibrating sieve device 1 has a clamping bar 3 engaged with a hook portion 21 of a lower mesh body 2, the clamping bar 3 fixed to a frame 11 by a clamping bolt 4, and the underside of the mesh body 2 supported on a frame 12 via a cushioning material 5, thereby attaching the mesh body 2. Here, the upper mesh body 2 of the vibrating sieve device 1 uses a mounting structure of the mesh body of a conventional vibrating sieve device, and the clamping bar 3' is engaged with the hook portion 21 of the upper mesh body 2, and the clamping The bar 3' is fixed to the frame 11 with a clamping bolt (round head bolt) 4', and the underside of the mesh body 2 is supported on the frame 12 via a cushioning material 5 to attach the mesh body 2. However, the mounting structure of the lower mesh body 2 can also be used for the upper mesh body 2 (or the mesh body of a vibrating sieve device having one stage of mesh body or three or more stages of mesh bodies), or the mounting structure of the lower mesh body 2 can be used for the upper mesh body 2 and the mounting structure of a conventional vibrating sieve device mesh body can be used for the lower mesh body 2.

[0019] The mounting structure of the lower mesh body 2 in the vibrating sieve device of the present invention forms an opening 31 in the clamping bar 3 for attaching and detaching the clamping bolt 4, and arranges a seat member 32 having a seat surface 32c for the clamping bolt 4 at a position set back from the opening 31 on the back side of the opening 31, and fixes the seat member 32 to the frame 11 with the clamping bolt 4, thereby fixing the clamping bar 3 to the frame 11. Here, the clamping bar 3 is made of iron or stainless steel, and abrasion-resistant steel plate or stainless steel having abrasion resistance can be suitably used. The seat member 32 is composed of a first component member 32a which forms the peripheral wall portion of the seat member 32, and a second component member 32b which forms the seat surface 32c and bottom wall portion of the clamping bolt 4, and is integrated with the clamping bar 3 by welding to form a recess in which the head of the clamping bolt 4 is accommodated. As a result, the head of the clamping bolt 4 is not exposed on the surface of the clamping bar 3 and does not come into direct contact with the object to be treated, and the head of the clamping bolt 4 is protected by the object to be treated that has entered the recess formed by the seat member 32 and in which the head of the clamping bolt 4 is housed (this entered object to be treated can be easily removed), preventing wear and improving durability. An appropriate cap member for closing the recess can also be provided in the recess.

[0020] The cross-sectional shape of the clamping bar 3 is formed into a J-shape with one end bent, and the bent portion 30b on one end is engaged with the hook portion 21 of the mesh body 2, and the clamping bar 3 is attached so that the straight portion 30a forms an upwardly inclined surface. As a result, there is no horizontal upper surface like the clamping bar 3', which minimizes retention of the material to be treated and reduces the cleaning burden when replacing the net 2.

[0021] A general-purpose hexagonal bolt is used for the clamping bolt 4, and the seat member 32 is formed so that when the hexagonal bolt is inserted into the bolt insertion hole 32d formed in the seat surface 32c of the seat member 32, the side of the head of the hexagonal bolt contacts the bottom surface of the seat member 32, thereby restricting rotation of the hexagonal bolt. The general-purpose hexagonal bolt used for the clamping bolt 4 is easily available in the event of damage or loss of the bolt. In addition, by restricting the rotation of the hexagonal bolt, it is possible to tighten the nut that screws onto the hexagonal bolt from outside the vibrating sieve device 1 using a tool, which reduces the workload when replacing the mesh body 2.

[0022] The frame 11 that fixes the clamping bar 3 is formed with an inspection window 13 through which an operator can insert his or her hand when attaching or detaching the clamping bolt 4. The inspection window 13 is closed with a lid member 14 when the vibrating sieve device 1 is in use. As a result, in the case of a vibrating sieve device equipped with two or more tiers of mesh bodies, in the past it was not possible to replace the lower tier mesh body 2 without removing the mesh body 2 above it, but by forming an inspection window 13, it is now possible to replace the lower tier mesh body 2 (removing and inserting the lower tier mesh body 2 and tensioning the mesh body 2) from outside the vibrating sieve device 1 without removing the upper tier mesh body 2, thereby shortening the time required for work.

[0023] A metal liner member 51 is attached to the cushion material 5, and the mesh body 2 and the cushion material 5 are The structure should be designed to prevent direct contact. Here, the liner member 51 is made of iron or stainless steel, and it is preferable to use a liner member made of stainless steel having wear resistance. In addition, it is preferable that the cross-sectional shape of the liner member 51 be formed into an arc shape (a pipe member is split and used) with a central angle θ of 180° (see Figure 4(a2)) or more, for example, about 120° (see Figure 4(a1)), which can accommodate deformation of the rubber cushioning material 5. This allows the mesh body 2 to slide on the liner member 51, improving workability when replacing the mesh body 2. In addition, even if the liner member 51 is provided, the rubber cushion material 5 does not lose its deformability, so it can handle the large amplitude and vibration frequency of the vibrating sieve device 1, and since the mesh body 2 and the cushion material 5 do not come into direct contact with each other, it is possible to reduce wear and settling of the rubber cushion material 5. By forming the cross-sectional shape of the liner member 51 into an arc shape with a central angle θ greater than 180°, the liner member 51 can be fitted into the cushion material 5 without using adhesives, thereby reducing the labor required for assembly and disassembly. In addition, it is possible to replace only the liner member 51 or the rubber cushion material 5, reducing the cost of consumables.

[0024] The vibrating sieve device of the present invention has been described above based on its embodiments, but the present invention is not limited to the configurations described in the above embodiments, and the configuration can be changed as appropriate within the scope of the spirit of the present invention. [Industrial Applicability]

[0025] The vibrating sieve device of the present invention eliminates the problems associated with conventional vibrating sieve devices, is durable, and allows the mesh body to be easily replaced, and therefore can be widely applied to vibrating sieve devices, both existing and new. [Explanation of symbols]

[0026] 1 Vibrating sieve device 11 Frame 12 Frames 13 Inspection window 14 Lid member 3 Clamping Bar 30a Straight section 30b Bent part 31 Opening 32 Seat member 32a First component 32b Second component 32c Seat 32d Bolt hole 3' Clamping Bar 4 Clamping bolt (hexagonal bolt) 4' Clamping bolt (round head bolt) 5 Cushioning material 51 Liner material

Claims

1. A vibrating sieve device in which a clamping bar is engaged with a hook portion of a mesh body, the clamping bar is fixed to a frame with a clamping bolt, and the underside of the mesh body is supported on the frame via a cushioning material, and the mesh body is attached to the frame. The vibrating sieve device is characterized in that a metal liner member is attached to the cushioning material, and the mesh body and the cushioning material are not in direct contact with each other.

2. 2. The vibrating sieve device according to claim 1, wherein the cross-sectional shape of the liner member is formed into an arc shape having a central angle of 180 degrees or more.

3. A vibrating sieve device as described in claim 1 or 2, characterized in that an opening is formed in the clamping bar for attaching and detaching a clamping bolt, and a seat member having a seat surface for the clamping bolt is arranged on the rear side of the opening, at a position set back from the opening, and the seat member is fixed to the frame by the clamping bolt, thereby fixing the clamping bar to the frame.

4. 3. The vibrating sieve device according to claim 1 or 2, characterized in that the cross-sectional shape of the clamping bar is formed into a J-shape with one end bent, the bent portion on one end is engaged with the hook portion of the mesh body, and the clamping bar is attached so that the straight portion forms an upwardly inclined surface.

5. 3. The vibrating sieve device according to claim 1 or 2, characterized in that the clamping bolt is a hexagonal bolt, and the seat member is formed so that rotation of the hexagonal bolt is restricted when the hexagonal bolt is inserted into the bolt insertion hole of the seat member.

6. 3. The vibrating sieve device according to claim 1, wherein a frame for fixing said clamping bar is formed with an inspection hole for attaching and detaching a clamping bolt.

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