JPS6134350Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an air slide discharge device for powder and granular material used in powder and granular material transportation vehicles.

The air slide discharge device for powder and granules is made by laying a cloth material such as canvas on the bottom wall of an inclined gutter, and supplying air between the cloth material and the bottom wall to remove the powder and granules from the cloth material. It slides along the top surface and is discharged from the central outlet provided at the lower end of the gutter. Therefore, the part where the cloth material is attached to the gutter must have an airtight structure to prevent the supplied air from leaking. For this reason, conventional cloth attachment parts have a structure as shown in FIGS. 1 and 2. That is, the canvas supports 3 along the longitudinal direction of the gutter 1 are attached to the left and right sides of the bottom wall 2 of the gutter 1 by welding 9 or the like, and the fabric material 4
The left and right sides of the canvas holder 3 were fixed by being sandwiched between the holding plate 5 and a large number of countersunk bolts 6.
However, in such a mounting structure, the cloth material 4
A large number of insertion holes 7 for inserting the countersunk bolts 6 must be provided on both left and right sides of the plate. In addition, since these insertion holes 7 need to completely match the numerous bolt holes 8 provided in the canvas holder 3, the insertion holes 7
The location of the holes must be accurate. However, if the insertion hole 7 is provided in the cloth material 4 in advance, the insertion hole 7 and the bolt hole 8 will not match due to manufacturing tolerances, welding distortion of the canvas support 3, etc., so in reality, when installing the cloth material 4, The insertion holes 7 were drilled one by one by hand, matching the bolt holes 8. For this reason, the number of man-hours required for attaching the cloth material 4 was large, making it extremely inefficient. In addition, since the work requires long hours in a container with limited space, there are problems with working posture, ventilation, etc.

The present invention was devised in order to correct the above-mentioned defects, and is an air slide discharge device for powder and granular material that can be easily and accurately installed without providing an insertion hole in the cloth material. The purpose is to provide.

An embodiment of the present invention will be described below with reference to FIGS. 3 to 5.

FIG. 3 shows a part of the cross section of the gutter 1 which is slightly inclined (approximately 6 degrees). A holding plate 12 is provided. In addition, gutter 1
Since the cross section of is symmetrical, only the right side wall 11 is shown in FIG. The presser plate 12 is approximately
It is installed at an angle of about 30 degrees, and its upper end 1
3 is closely attached to the side wall 11, and the lower end portion 14 extends toward the bottom wall 2 of the gutter 1. Note that the lower end 1
4 is rounded by a grinder or the like. A large number of through holes 15 are provided at a substantially central portion of the presser plate 12 along its longitudinal direction at predetermined intervals. On the other hand, bolts 16 corresponding to the insertion holes 15 are implanted in the side wall 11 and fixed by welding 21 or the like, and the tips of these bolts 16 are inserted into the insertion holes 15 as shown in FIGS. 3 and 4. are inserted into each. A taper washer 17 is inserted into the tip of the bolt 16, and a nut 18 is further screwed into the bolt 16.

A cloth material 4 such as canvas is laid on the bottom wall 2. The left and right sides of the cloth material 4 are inserted between the lower end 14 of the presser plate 12 and the bottom wall 2, and are in contact with the lower end of the side wall 11. As shown in FIGS. 4 and 5, a cotton tape 19 is sandwiched between the left and right sides of the cloth material 4 along the longitudinal direction of the cloth material 4, and the lower end portion 14 of the presser plate 12 is attached to this cotton tape 19. It is designed to be crimped. Further, on both left and right sides of the bottom wall 2, round bars 20, which are cloth material slip prevention members, are placed along the longitudinal direction of the bottom wall 2, as shown in FIG.

The air slide discharge device for powder and granular material is constructed as described above, and after the cloth material 4 is spread on the bottom wall 2, its left and right sides are connected to the lower end 14 of the holding plate 12 and the bottom wall 2.
The cloth material 4 can be easily attached by simply inserting it into the gap between the two and tightening the nut 18. That is, when the nut 18 is tightened, both left and right ends of the cloth material 4 are sandwiched and fixed between the lower end 14 of the presser plate 12 and the bottom wall 2. At this time, the lower end 1 of the presser plate 12
4 is rounded, and cotton tape 19 is sandwiched between the left and right sides of the cloth material 4, so there is no fear that the cloth material 4 will be damaged by the presser plate 12. Also,
A round bar 2 is installed between the left and right sides of the cloth material 4 and the bottom wall 2.
0 is inserted, even if a strong force is applied to the cloth material 4 in the direction of arrow a in FIG. 5, the right and left sides of the cloth material 4 will not come off from the presser plate 12. That is,
When air is supplied between the bottom wall 2 and the cloth material 4, the cloth material 4 tries to move in the direction of arrow a in FIG. Since the lower end portion 14 and the round bar 20 are sandwiched with a high surface pressure locally, movement of the cloth material 4 in the direction of arrow a is reliably prevented, and air from between the cloth material 4 and the bottom wall 2 is prevented. It can prevent leakage and is extremely reliable. In addition, if it is desired to further improve the airtightness between the cloth material 4 and the bottom wall 2, sealing material (not shown) may be packed above and below the round bar 20.

As described above, the present invention involves laying a cloth material on the bottom wall of the sloping gutter, and installing a pair of retaining plates on the pair of side walls of the gutter, each of which is tightened and fixed with a plurality of bolts. In an air slide discharge device for powder and granular material configured to sandwich and fix both sides of the cloth material between a pair of presser plates, a plurality of bolts for tightening and fixing the pair of presser plates are attached to each of the cloth materials. The upper ends of the pair of retaining plates, which are attached to the pair of side walls of the gutter in two rows along positions spaced outward from both sides of the material and are inserted through a plurality of bolts, respectively, are attached to the upper ends of the gutter. A pair of presser plates are brought into direct contact with a pair of side walls, and the lower ends of the pair of presser plates are brought into contact with both sides of the cloth material, and a pair of presser plates are placed along between both sides of the cloth material and the bottom wall of the gutter. A cloth material slip prevention member is provided, and by tightening each of the plurality of bolts, both sides of the cloth material are held at the lower end of the pair of presser plates with the pair of cloth material slip prevention members sandwiched between the gutter. An air slide discharge device for powder and granular material, characterized in that the material is pressed against the bottom wall and is fixed to the bottom wall without having both sides of the cloth material inserted through a plurality of bolts. be.

Therefore, according to the present invention, the cloth material can be easily and reliably attached without providing an insertion hole for passing a bolt through the cloth material. Therefore, it is no longer necessary to manually punch holes one by one in the cloth material as in the past, and the work of attaching or replacing the cloth material can be accomplished extremely quickly. Further, since there is no need to provide a canvas holder unlike the conventional discharge device, the structure is simplified and the weight of the device can be reduced, and at the same time, volumetric efficiency can be improved.

However, according to the present invention, when pressing and fixing both sides of the cloth material onto the bottom wall of the gutter with the lower ends of the pair of presser plates, the both sides of the cloth material are held down by a pair of cloths such as round rods. Since the material is configured to be pressed onto the bottom wall with the material slip prevention member in between, both sides of the fabric material can be strongly pressed and fixed, and the fabric material can be prevented from being strongly pulled toward the center. Even if there is a problem, both sides of the cloth material will never come off unexpectedly from the lower ends of the pair of presser plates, and safety is extremely high.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a conventional air slide discharge device for powder and granular materials, Figure 2 is an enlarged cross-sectional view of the main parts of the same as above,
3 to 5 show an embodiment of the present invention, and FIG. 3 is a sectional view showing the main parts of the present invention;
FIG. 4 is a side view taken along the line ``-'', and FIG. 5 is an enlarged cross-sectional view of section A in FIG. 3. Also, in the symbols used in the drawings, 1...
Gutter, 2... Bottom wall, 4... Cloth material, 11... Side wall, 12... Holding plate, 13... Upper end of holding plate,
14... Lower end of presser plate, 15... Insertion hole, 16
... Bolt, 18 ... Nut, 20 ... A round bar that is a member to prevent slipping of cloth material.

Claims (1)

[Claims for Utility Model Registration] A cloth material is laid on the bottom wall of the sloping gutter, and a pair of retaining plates are provided on the pair of side walls of the gutter, each of which is tightened and fixed with a plurality of bolts, In an air slide discharge device for powder and granular material configured to sandwich and fix both sides of the cloth material between the pair of presser plates, each of the plurality of bolts that tightens and fixes the pair of presser plates is attached to the The upper ends of the pair of retaining plates, which are attached to the pair of side walls of the gutter in two rows along positions spaced outward from both sides of the cloth material and each inserted through a plurality of bolts, are attached to the gutter. The lower ends of the pair of presser plates are brought into direct contact with the pair of side walls, and the lower ends of the presser plates are brought into contact with both sides of the cloth material, and the presser plates are placed along between both ends of the cloth material and the bottom wall of the gutter. A pair of cloth material slip prevention members are provided, and by tightening each of the plurality of bolts, both sides of the cloth material are secured to the gutter with the pair of cloth material slip prevention members sandwiched between the lower ends of the pair of presser plates. An air slide discharge device for powder and granular material, characterized in that the air slide discharge device for powder and granular material is configured to be pressed against the bottom wall of the cloth material and fixed to the bottom wall without having both sides of the cloth material inserted through a plurality of bolts. .