JPH0739842Y2 - Conveyor belt - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beaded conveyor belt used in curve conveyors and spiral conveyors.

[0002]

2. Description of the Related Art A curve conveyor is basically constructed by stretching a loop-shaped conveyor belt between two rollers in a manner of a plane arc, and is provided in the outer area of the conveyor belt. A large number of supporting members attached to the fixed portion prevent the transfer belt from moving inward. For this reason, as shown in FIG. 5, a bead 1 that engages with the support tool 9 is provided on the outer peripheral portion of the conveyor belt.

As shown in FIG. 6, the bead 1 is composed of a thin wall portion 10 surrounding the outer peripheral edge surface and a spherical portion 11 surrounding the outer peripheral edge. The part 10 is attached so as to be sewn on. As shown in the same figure, the conveyor belt is provided with upper and lower bearings 91, which are arranged in the support tool 9 in a V shape (a mode in which they approach each other outward).
It is used in such a manner that the spherical portion 11 is sandwiched by 92.

However, in the above-mentioned conveyor belt, since the outer peripheral surface of the bearing and the spherical portion 11 of the bead 1 are in contact with each other at one point, the stress acting on the bead 1 is concentrated at one point. Therefore, the bead 1 and the belt main body 2 are severely damaged during the operation, and moreover, the presence of the depression of the bead 1 which occurs when the conveyor is stopped causes a large noise at the time of starting and requires more power than necessary. turn into. That is, in this conveyor belt, there is a problem that the life of the bead 1 and the belt main body 2 is short, and noise and required power during starting and during operation become large.

[0005]

Therefore, in this invention, the bead is difficult to separate from the belt body, and further,
The bead and belt body 2 have a long service life and move more than necessary.
An object is to provide a conveyor belt that does not require force .

[0006]

SUMMARY OF THE INVENTION This invention has an R-shaped plan view.
For conveyors used in belt conveyors that have a movement path of
The belt is made of elastic synthetic resin on the outer periphery of the belt body.
It is equipped with a bead consisting of
The outer peripheral surface of the upper and lower rotating bodies provided in the fixed part and the above
The contact with the bead prevents the movement of the inside.
In the conveyor belt, the bead is the outer peripheral edge of the belt body.
The thin portion surrounding the neighboring surface and the outer peripheral edge of the belt body are
It is composed of a thick wall portion that surrounds the thin wall
Of the stepped portion with the thin portion in the thick portion, the upper surface side portion is a plane that makes line contact with the outer peripheral surface of the upper rotating body, and the lower surface side portion is the lower rotating body. Is a flat surface that comes into line contact with the outer peripheral surface of.

[0007]

[Operation] This invention operates as follows. Is the joining area between the belt body and the bead increased?
The beads from the belt body by the force from the upper and lower rotating bodies.
It will be difficult to peel off from. The position of the force that acts on the bead from the upper and lower rotating bodies is the bead.
At a position far from the inner joint edge with the belt body at
The inner joint edge of the bead peeled off from the belt body.
It will be a good thing. The position of the force that acts on the bead from the upper and lower rotating bodies is the bead.
Since it is the middle part of the whole, the force from the upper and lower rotating bodies is
Concentrated load on the inner joint edge of the bead
Does not act as. Therefore, the belt body
It will not be damaged in a short period of time. The outer peripheral surface of the rotating body and the flat part provided on the thick part of the bead
Are in line contact, so the upper and lower rotating bodies act on the bead.
The resulting stress will be dispersed. Therefore, during operation
And the bead and belt body are less damaged.
There are few bead dents that occur when the bearing is stopped.
It is difficult to make a loud noise when starting.
It does not require more power than necessary.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of the present invention will be described below with reference to the drawings shown as embodiments. In this embodiment, the conveyor belt of the present invention is used for a spiral conveyor. Basically, as shown in FIGS. 1 and 2, a spirally formed frame 3 and the frame 3 are provided. 1. A taper roller 4 rotatably supported on both edges of the belt, a loop-shaped conveyor belt B stretched in an arc shape along the frame 3 between the tapered rollers 4 and 4, and an outer periphery of the conveyor belt B. On the side, a locking means K (shown in FIG. 3) for preventing only the inward movement of the outer peripheral portion of the conveyor belt B in the driven state in the manner of being pulled outward, and the taper roll 4 are rotationally driven. The motor 7 and the frame 3
And a pedestal 8 for supporting the above in a predetermined posture.

As shown in FIG. 3, the frame 3 is provided with left and right supporting members 30, 31 and a belt placing plate 32 installed between the supporting members 30, 31, and the belt placing plate is provided. The upper surface position of 32 is set corresponding to the upper surface positions of the above-mentioned taper rollers 4 and 4. A pair of bearing units (not shown) are arranged on the upper and lower portions of the frame 3, and the bearing units rotatably support the tapered rollers 4 and 4.

As shown in FIG. 3, the locking means K includes a bead 1 provided on the outer peripheral portion of the belt main body 2 and a large number of supporting members 9.
It consists of and. As shown in the figure, the support 9 includes a base body 90 and an upper / lower rotating body 9 arranged in a V-shape on the base 90 (a mode in which they approach each other outward).
1, 92 on the other hand, the bead 1 is made of elastic synthetic resin, and as shown in FIG. 4, a thin portion 10 surrounding the outer peripheral edge surface of the belt body 2 and the belt body. 2 and a thick portion 12 surrounding the outer peripheral edge. Then, as shown in FIG.
In the stepped portion with the thin portion 10 in 2, the upper surface side portion is the flat surface 13 that makes line contact with the outer peripheral surface of the upper rotating body 91, and the lower surface side portion 92 is the flat surface 14 that is in line contact with the outer peripheral surface of the lower rotating body. There is. Therefore, the relationship between the plurality of upper / lower rotating bodies 91 and 92 and the planes 13 and 14 in the assembled state is as shown in FIGS. 3 and 4. In addition, in this embodiment,
The lower rotating bodies 91 and 92 are configured by bearings,
The inner race of the bearing is supported and fixed, and the outer race is the rotating part.

In this spiral conveyor, since the bead 1 is constructed as described above, when the centripetal force acts on the conveyor belt B (acts in the direction of arrow A in FIG. 1), the upper and lower rotating bodies 91 and 92 are rotated. The outer peripheral surface and the flat surfaces 13 and 14 of the bead 1 come into line contact with each other, so that the stress acting on the bead 1 from the upper and lower rotating bodies 91 and 92 of the support tool 9 is dispersed instead of being concentrated at one point. Therefore, the bead 1 and the belt main body 2 are less damaged during the operation, and further, the bead 1 is not dented when the conveyor is stopped. No more power is needed. And
The joining area between the belt body 2 and the bead 1 should be large.
To the bead by the force from the upper and lower rotating bodies 91 and 92.
1 becomes difficult to peel from the belt main body 2, and
Position of force acting on the bead 1 from the upper and lower rotating bodies 91, 92
From the inner joint edge of the bead 1 with the belt body 2
Since it is located far away, the inner joint edge of the bead 1
It becomes difficult to peel from the belt body 2, and further
The position of the force acting on the bead 1 from the lower rotating bodies 91, 92 is
Since it is the middle part of the bead 1, the upper and lower rotating bodies 9
The force from 1,92 with the bead 1 on the belt body 2
Does not act as a concentrated load on the inner joint edge,
Therefore, the belt body 2 may be damaged in a short period of time.
Disappears.

[0012]

Since the present invention has the above-mentioned structure, it has the following effects. From the contents described in the action column,
The beads do not easily peel off from the belt body, and
And the belt body 2 have a long service life
It was possible to provide a conveyor belt that was not needed .

[Brief description of drawings]

FIG. 1 is a plan view of a spiral conveyor according to an embodiment of the present invention.

FIG. 2 is a side view of the spiral conveyor.

FIG. 3 is a vertical sectional view of the spiral conveyor.

FIG. 4 is a view showing a relationship between a belt main body used for the spiral conveyor, beads, and upper and lower rotating bodies.

FIG. 5 is an explanatory view of a conventional bead used for a curve conveyor.

FIG. 6 is a view showing a relationship between the beads and upper and lower rotating bodies.

[Explanation of symbols]

 1 Bead 2 Belt Main Body 10 Thin-walled Part 12 Thick-walled Part 13 Plane 14 Plane 91 Upper Rotating Body 92 Lower Rotating Body

Claims (1)

[Scope of utility model registration request] 1. A belt belt having an R-shaped movement track in a plan view.
Conveyor belt used for conveyor, which is the belt body
A bead made of elastic synthetic resin is provided on the outer peripheral portion of the
And the top of the square shape provided on the fixed part of the conveyor body.
.Inward by contact between the outer peripheral surface of the lower rotating body and the beads
In the conveyor belt that is in the movement blocking state with respect to
The thin portion that surrounds the outer peripheral edge surface of the belt body,
And a thick wall portion surrounding the outer peripheral edge of the belt body.
In addition, the thin portion and the thick portion are continuously provided,
Among the stepped portion with the thin portion in the thick portion, the upper surface side portion is a plane that makes line contact with the outer peripheral surface of the upper rotating body, and the lower surface side portion is a plane that makes line contact with the outer peripheral surface of the lower rotating body. Characteristic conveyor belt.