JPS5811772Y2 - Belt cleaner device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a belt cleaner device that scrapes off and cleans deposits such as conveyed objects that adhere to the conveying surface of a conveyor belt.The present invention aims to improve the scraping effect and durability, and the installation is removable. The purpose is to facilitate the installation and prevent damage to the mounting bolts.

2. Description of the Related Art Belt cleaner devices of various structures have been proposed for scraping off deposits such as conveyed objects adhering to the conveyance surface of a conveyor belt, such as one shown in FIG. 1.

That is, in the belt cleaner device shown in FIG. 1, a repulsion support plate 2 having a tip 1 at the upper end is supported by an elastic body 3 made of rubber or the like formed into a trapezoidal cylinder shape, and this elastic body 3 is held in a space 4 thereof.
It is attached to the fixed frame I by a holding plate 5 and bolt nuts 6 inserted into the chip 1, and the chip 1 is pressed against the return side conveyance surface of the conveyor belt 8, so that a predetermined scraping effect can be achieved even when the conveyor belt 8 falls in the forward and reverse directions. It was made so that it could be obtained.

However, since this is a structure in which the repulsion support plate 2 is supported only by the elastic body 3, the repulsion support plate 2 is structurally prone to tilt forward and backward as the conveyor belt 8 rotates, and the tilting is If the hardness of the elastic body 3 is increased in order to prevent this, the elastic movement of the repulsion support plate 2 in the vertical direction will be significantly inhibited. Since the chips 1 escape from the conveyor belt 8 due to the tilting movement, it becomes impossible to scrape off the conveyed object, and the scraping effect is significantly reduced.

Furthermore, when reversing the conveyor belt 8, the repulsion support plate 2 constantly repeats tilting in the front and back direction, and at this time an impact force is applied to the chips 1, and an elastic body is 3 is prone to cracking, and the attachment part comes off before the tip 1 wears out.

Further, in the conventional type, the bolt nut 6 is exposed to the outside, so it is easily damaged, and the bolt 6 is inserted into a bolt hole, so it is troublesome to remove it.

The present invention has been developed to solve these conventional problems, and its feature is that the bottom plate of the mounting bracket, which has a U-shaped cross section, is located in the center between the left and right vertical side plates. A repulsion support plate for supporting the chip is arranged in the vertical direction at a distance upward from the repulsion support plate. A sufficient space is formed below the repulsion support plate for the bolt head to protrude, and an elastic body is interposed so as to elastically support the repulsion support plate upward. A notch for inserting and removing bolts is formed, and elongated holes for bolt insertion are formed in the frame that receives the bottom plate of the mounting bracket in the longitudinal direction of the mounting bracket and outward from the notch, corresponding to both ends of the bottom plate. The mounting bracket is fastened to the frame by a pair of bolts which are respectively formed so as to protrude from each other, and which are inserted into the respective notches and slots, and whose bolt heads protrude into the space, and nuts which are screwed together.

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment.
In the figures and FIG. 3, 10 is a conveyor belt, 11 is a fixed frame arranged laterally below the return side of the conveyor belt 10, and has support cylinders 12 at both ends, and each support cylinder 12 is connected to a clamper. 13 so that the mounting angle can be freely adjusted, and is fixed by bolts and nuts 14.

Each clamper 13 is attached to the vertical frame 1 on the conveyor frame side.
A clamper 13 is attached to the vertical frame 15 through a long hole 16 and a port N7 so that it can be adjusted vertically.
The vertical adjustment bolt 18 that comes into contact with the bottom surface of the bracket 1
It is screwed in through 9.

A plurality of cleaners 20 are provided on the fixed frame 11 in a horizontal direction corresponding to the belt width of the conveyor belt 10.

Each cleaner unit 20 has a mounting bracket 21 and a repulsion support plate 22.
, a chip 23, an elastic body 24, etc., as shown in FIGS. 4 and 5.
It is configured as shown in the figure.

That is, the mounting bracket 21 has a U-shaped cross section including a pair of side plates 25 and a bottom plate 26, and a notch 27 is formed at both ends of the bottom plate 26, and a bolt that fits into the notch 27 is inserted. It is removably fixed to the fixed frame 11 by 28 and nuts 29.

On the side of the button fixing frame 11, a long hole 30 is formed to allow the bolt 28 to be engaged with and removed from the notch 27 when the mounting bracket 21 is attached or removed, as shown by the imaginary line in FIG. Bolt 28 is inserted.

The repulsion support plate 22 is disposed at the center between the side plate parts 25 of the mounting bracket 21 and at a predetermined distance apart from the bottom plate part 26 .
The elastic body 24 is interposed between the side plate portion 25 and the elastic body 24 .

The elastic body 24 is made of, for example, rubber having a hardness of about 40 to 50 degrees, and this elastic body 24 is connected to the repulsion support plate 22 and the bottom plate portion 26.
The lower surface 24a is formed into a concave curved surface so that a space 31 extending over the entire length in the longitudinal direction is created between the upper surface 24b and the upper surface 24b.
is a concave curved surface that is highest on the side of the repulsion support plate 22, thereby elastically supporting the repulsion support plate 22 upward and preventing it from tilting.

The head of the bolt 28 protrudes into the space 31.

In this case, the elastic body 24 is the side plate portion 25 of the mounting bracket 21.
It is provided so as to extend from the corner 32 between the bottom plate 26 and the bottom plate 26 side.

The chip 23 is made of a highly hard and wear-resistant material such as cemented carbide or ceramic, and is removably attached to the upper end of the repulsion support plate 22, and is always pressed against the return-side conveying surface of the conveyor belt 10 from a perpendicular direction.

In addition to the above configuration, when setting the cleaner device to the conveyor belt 10, a plurality of cleaner units 20 are attached to the fixed frame 11, and the bolts and nuts 14 of the clamper 13 are loosened to support the fixed frame 11. The contact angle of each chip 23 with respect to the conveyor belt 10 is set to 90 degrees by rotating the cylindrical body 12 around the axis,
Further, the vertical position of the fixed frame 11 is adjusted using the bolt 17 and the vertical adjustment bolt 18 as necessary, and the pressure force between the conveyor belt 10 and the chip 23 is appropriately set.

If each cleaner unit 20 is set as described above,
Since the chips 23 slide relative to the conveying surface of the conveyor belt 10 while remaining in pressure contact at a contact angle of 90 degrees, deposits adhere to the conveying surface regardless of whether the conveyor belt 10 rotates forward or reverse. (transferred objects and other objects) can be scraped off and cleaned with the tip 23, and even when the adhesion force is particularly strong or the adhesion layer is thick, the contact angle of the tip 23 constantly maintains a state close to 90 degrees. Appropriate pressing force can be applied to the conveyor belt 10 by the repulsion action mainly based on vertical movement, and scraping off of deposits is extremely effective.

That is, when scraping off deposits, the repulsion support plate 22
Although the repulsion support plate 22 may receive resistance force in the direction of belt movement through the elastic body 24, the repulsion support plate 22
Since it is supported between the side plate parts 25 of 1, the repulsion support plate 2
The front elastic body 24 of 2 receives compression at the top and tension at the bottom, and the rear elastic body 24 receives tension at the top and compression at the bottom. The repulsion support plate 22 is regulated by each side plate portion 25 and is prevented from tilting by the elastic body 24 and the mounting bracket 21, so that the contact angle of the tip 23 constantly maintains a state close to 90 degrees.

Therefore, when the conveyor belt 100 is reversed, the compression and tension actions of the elastic bodies 24 on the front and rear sides are only reversed with the repulsion support plate 22 as a boundary, and do not appear as a tilting movement of the repulsion support plate 22. 22 constantly presses the chip 23 against the conveyor belt NO while maintaining a contact angle close to 90 degrees, there is no abnormal resistance from the conveyor belt 10 to the chip 23, it absorbs the reversal impact force in the direction of belt movement, and the function is sufficient. It is possible to effectively scrape off deposits.

In addition, the repulsion support plate 22 is connected to the mounting bracket 21 via the elastic body 24.
Since there is a space 31 below the repulsion support plate 22, the elastic action of the elastic body 240 appears as a vertical movement of the repulsion support plate 22, and the chips 23 are sufficiently moved against the conveyor belt 10. It is possible to press the
Therefore, the movement of the repulsion support plate 22 due to the repulsion elastic action becomes very stable and smooth, and the pressure contact force of the tip 23 can be arbitrarily adjusted according to the thickness of the deposit, the difference in adhesive force, etc.
Even if there is a smooth protrusion on the surface of the conveyor belt 10, the chips 23 can follow the protrusion in the vertical direction and scrape off the deposits while maintaining a contact angle close to 90 degrees. be.

The button elastic body 24 shown in FIG. 4 is considered to be the most preferable, but it is not limited to this. FIGS. 6 and 7 are modified examples of the button elastic body 24 shown in FIG. The upper side surface 24b is shown as a flat inclined surface and a convex curved surface.

As described in detail in the embodiments above, in the present invention, a repulsion support plate is attached to a mounting bracket having a U-shaped cross section via an elastic body, and the tilting of this repulsion support plate is regulated via each side plate portion of the mounting bracket. As a result, the chips can always be brought into pressure contact with the conveyor belt from the perpendicular direction, and the efficiency of scraping off deposits is significantly improved.

It also functions stably and smoothly even when the conveyor belt falls in the forward and reverse directions.

Furthermore, there is a space below the repulsion support plate between it and the bottom plate of the mounting bracket, and the repulsion support plate is elastically supported upward by an elastic body, making it easy to adjust the pressure force against the conveyor belt. , excellent vertical followability.

Furthermore, since the repulsion support body is supported by the mounting bracket having a U-shaped cross section via the elastic body, there is no cracking of the elastic body, and durability during use is improved.

Notches for inserting and removing bolts are formed at both ends of the bottom plate of the housing mounting bracket, and elongated holes for bolt insertion are formed in the frame corresponding to both ends of the bottom plate in the longitudinal direction of the mounting bracket,
The mounting bracket is fastened to the frame with a pair of bolts inserted through each of these notches and slots, and the bolts are connected to the notches from the outside on both ends, so despite the presence of elastic bodies, The mounting bracket can be easily installed, so installation and removal work is very easy, and l
There is no need to attach bolts to the mounting bracket in advance, etc.
Its practical value is extremely significant.

Furthermore, the side plates are vertical, allowing the elastic body to effectively exert shear strain, and since the elastic bodies are provided not only on the side plates of the mounting bracket but also on both ends of the bottom plate, the repulsion support plate Excellent elastic support against downward pressure, prevents shear separation between the side plate and the elastic body, and extends life.

Further, since the mounting bolt is provided in the space, the bolt can be easily removed without any scraped deposits adhering to the bolt.

[Brief explanation of drawings]

Fig. 1 is a side view showing a conventional example, Fig. 2 is a side view showing an embodiment of the present invention, Fig. 3 is a front view of the same, Fig. 4 is an enlarged side view of the same, Fig. 5 is a Fig. 4 The AA line arrow view, FIGS. 6 and 7 are side views showing other embodiments. 10...Conveyor belt, 20...Cleaner unit, 21...Mounting bracket, 22...
...Repulsion support plate, 23... Chip, 24...
...Elastic body, 25...Side plate part, 26...
...Bottom plate part.

Claims (1)

[Scope of utility model registration request] In the center between the left and right vertical side plates of the U-shaped mounting bracket,
A repulsion support plate for supporting the chip is arranged in the vertical direction at a distance upward from the bottom plate, and both sides of the repulsion support plate,
A space sufficient for the bolt head to protrude below the repulsion support plate is formed between the inner surface of each side plate portion of the mounting bracket and the inner surface of both ends of the bottom plate portion, and the repulsion support plate is resiliently supported upward. With an elastic body in between, cutouts for bolt insertion and removal are formed at both ends of the center part in the left-right direction of the bottom plate of the mounting bracket, and the frame that receives the bottom plate of the mounting bracket corresponds to both ends of the bottom plate. and a pair of bolts each having a bolt insertion hole extending in the longitudinal direction of the mounting bracket and protruding outward from the notch, and having a bolt head that extends into the space and is inserted through each of the notches and the long hole. A belt cleaner device characterized in that a mounting bracket is fastened to a frame by a nut screwed onto the belt cleaner.