JPS6133406A - Pipe conveyor - Google Patents

Abstract

PURPOSE:To increase the amount of conveyance and to prevent both side end parts of a rounded conveyor belt from being worn, by arranging shape holding rollers such that both side ends thereof are made abut against each other or close to each other without both side end parts of the rounded conveyor belt being overlapped with each other. CONSTITUTION:An endless conveyor belt 1 is wound, in its front and rear sections where the belt is developed in a flat belt-like form, around a drive drum 2 and a driven drum 3. Further, several shape holding frames 5 are arranged along the advancing direction of the conveyor belt at predetermined intervals and supported to a frame 4 which surrounds the upper out-going trip belt 1a and lower return trip belt 1b of the belt conveyor 1. Each shape holding frame 5 is divided into two upper and lower chambers 5a, 5b each disposed therein a plurality of shape holding rollers 6, 7 for rounding the associated trip belt 1a, 1b. In this arrangement, the rollers 6 for the out-going trip belt 1a is made longer than that of the rollers 7 for the return trip belt 1b so that both side edges of the out-going trip belt 1a is made abut against each other or close to each other without being overlapped with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a pipe conveyor in which a flat belt is rolled upward into a pipe shape so that objects to be conveyed can be conveyed without scattering.

[Conventional technology]

The majority of the outgoing belt of an endless conveyor belt that circulates between the upper outgoing path and the lower backward path is given a tendency to curl around the longitudinal axis in advance, and is guided by a large number of rollers. A pipe conveyor is known in which a shape-retaining roller rolls an object upward into a pine-like shape, wraps the object therein, and conveys the object in an arbitrary direction.

According to this pipe conveyor, the conveyed objects do not scatter or spill, the conveying slope can be made steep, and the conveying direction can be changed to any direction without transferring the conveyed objects. Because it can be converted to

[Problem that the invention seeks to solve]

However, in the conventional pipe conveyor of this type, the inner and outer surfaces of both ends 6υ[5] and l of the rounded conveyor bell (451) are overlapped as shown in FIG.
Alternatively, since the inner surfaces are butted against each other in the shape of palms together (not shown), the diameter becomes smaller accordingly, and the amount of conveyance is reduced.

In addition, when the conveyor belt (51) unfolded into a belt shape in the driving drum and the driven drum is rolled up, the inner side end (5i) hits the inner surface of the outer side end 56. However, it may not overlap smoothly, and during long-term use, this part may slide and become worn or damaged.

This jamming phenomenon occurs when the conveyor belt 14511 curls and unfolds, but it occurs most violently when the conveyor belt 6υ on the outward path wraps around the conveyed object. It has been filed under No. 127866.

FIG. 5 shows the gist of the present invention, in which a conveyor belt (6υ) having a tendency to curl like the above-mentioned conveyor belt (511) is horizontally and in the conveyance direction just before being rolled upward into a pipe shape. Press roller (6) facing perpendicular to
One side end (615) is forcibly bent inward.

However, the method of this invention also has the problem that the conveyance amount is reduced by the amount of polymerization of both side ends (6d (6S), the conveyance becomes complicated, and delicate adjustments are required. There is.

[Failure to solve the problem]

The present invention uses an extremely simple means of arranging the shape-retaining rollers so that both ends of the rolled conveyor belt are in contact with or come close to each other without overlapping each other.
This is an attempt to solve both of the above problems.

[For production]

In the present invention, since the opposite ends of the conveyor belt do not overlap or contact each other, the amount of conveyance increases accordingly, and the phenomenon of jamming does not occur and wear does not occur.

〔Example〕

Figures 1 to 6 show a pipe conveyor to which the present invention is applied, and as shown in Figure 2, an endless pipe conveyor that has a tendency to curl up at the top due to its own elasticity during manufacture, as shown in Figure 2. The conveyor belt (1) consists of a driving drum (2) at the front upper part (right side in Figure 2) and a driven drum (3) at the rear lower part (left side in Figure 2).
The part that unfolds like a belt is turned around.

The frame (4) that surrounds the upper side of the conveyor belt (1) (outgoing bell) (1a) and the lower side (returning bell) (1b) includes:
A large number of shape-retaining frames (5) are arranged at predetermined intervals in the traveling direction, and each shape-retaining frame t51 has two upper and lower chambers (5a) (51).
).

As shown in Fig. 1, inside the upper chamber (5a) are a total of six outgoing shape-retaining rollers (6), two each on the upper and lower sides and on both sides, which are slightly elongated.
However, in the lower chamber (5b), like the outgoing shape-retaining rollers (6), there are six in total, two each on the upper and lower sides and on both sides, and the return-path shape-retaining rollers (7), which are slightly shorter than the outgoing shape-retaining rollers (6). The pivot fittings 181 are arranged on the same circumference so as to substantially draw Ueda.
+91, and is pivoted on a mounting plate (5C) perpendicular to the direction of movement of the shape-retaining frame (5).

Therefore, the space surrounded by the outward shape-retaining roller (6) is slightly wider than the space surrounded by the return shape-retaining roller (7), and the circumference of the inscribed circle of the outward shape-retaining roller (6) is flat. It is slightly larger than the width of the conveyor belt (1) when it is unfolded, and the width of the returning shape retaining roller (7) is also the same as the conveyor belt) tl,
) so that it is slightly smaller than the width.

As shown in Fig. 6, the center and both sides of the unfolded outgoing bell Bia) between the driven drum (3) and the lower end shape-retaining frame (5) are supported by rounding rollers tlo+, respectively. .

Although not shown, return belt (1b) in the same section as above
The drive drum (2) and the shape retaining frame (5) at the upper end are also supported by rollers disposed approximately vertically symmetrically with the rounding roller 110), and are also configured approximately longitudinally symmetrically as described above.

The outbound belt (1a) rotates around the driven roller (3) from below.
) is gradually rolled into an upward gutter shape by the guidance of the rounding roller LIOI and the elastic tendency of the conveyor belt (1), and in this, a hopper U provided above the driven roller (3)
The conveyed object circle is introduced from υ.

Then, as shown in FIG. 1, the outbound bell) (1a) is
The shape-retaining frame (1) enters the upper chamber (1a) and is guided by the outgoing shape-retaining rollers (6) so that both side edges (1C) are close to each other, and the conveyed object +12 is rolled into the upper chamber (1a). It wraps around itself and travels while maintaining its pipe shape.

At this time, the outgoing belts (1a
), the side edges (1C) of the horizontal upper rollers (6
a) and the outbound bells on both sides) (1
a) Since the whole is restrained by the rollers (6) to maintain a circular cross section, the side edges (1C) will not be spaced apart or uneven.

Near the drive drum (2), the shape retaining frame (5) at the upper end
The outgoing bell (1a) which has escaped from the belt is unfolded while passing through the belt interpolation device, which is approximately symmetrical to the belt rounding device shown in FIG. 3, and when forwarding the drive drum (2),
Drop the conveyed object a2.

The return trip bell) (11)) is rolled up in the same way as the outbound trip bell) (1a) and passes through the lower chamber (5b) of each shape retaining frame (5),
It circulates back to the driven drum (3).

Since the return path shape-retaining rollers (8) are arranged as described above, both ends oit13 of the return path belt (1b) are
Polymerization occurs in the same manner as the outbound belt C51) in a conventional pipe conveyor.

Therefore, some of the conveyed objects (12) that remain attached to the surface of the returning bell (1b) will not fall.

In addition, depending on the case, the returning bell (1b) may be returned as a flat belt while being unfolded on the drive roller (2), and as with the outward traveling bell) (1a), the side edges may be rolled to prevent them from overlapping each other. You can also roll it up and return it.

〔Effect of the invention〕

In the above-mentioned twin-beam conveyor, since both ends of the conveyor belt do not overlap, the amount of conveyance increases accordingly, and for the same amount of conveyance, the width of the conveyor belt is made smaller, making it lighter and cheaper. can do.

Furthermore, both ends of the conveyor belt are not worn or damaged, and since the structure is the same as that of the conventional belt, manufacturing costs are not increased.

In addition, in the case of the above-mentioned pipe conveyor, if the conveyed object is particularly sensitive to moisture, a simple cover should be provided on the top surface of the frame along the side edges of the conveyor belt to prevent rainwater from splashing on it. All you have to do is prevent it.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view showing a shape-retaining frame of a pipe conveyor to which the present invention is applied, FIG. 2 is a side view schematically showing the entire structure, and FIG. FIG. 4 is an enlarged cross-sectional plan view. FIG. 4 is a longitudinal sectional front view of an outgoing belt of a conventional pipe conveyor. FIG. 5 is a longitudinal sectional front view of an outgoing belt provided with conventional press rollers. (1) Transport bell) +IJflj side end (1a
) Outbound belt (1b) Return belt) (IC) side edge (2
) Drive drum (3) Return belt (4) Frame f5
1 Shape-retaining frame (5a) Upper chamber (5b) Lower chamber (5C
) Mounting plate (6) Outward shape retaining roller (7) Return shape retaining roller + 81 + 9) Pivot fitting ll0) Rounding roller 0υ hopper (12 + conveyed object C51) conveyance bell) (5] J (5fl side end (61) conveyance Belt (6fl (6fl side end (62) Pressing roller 1 Figure 2 Figure 3 Figure 4 Figure 5 Procedure amendment (voluntary) October 21, 1985

Claims (3)

[Claims] (1) Most of the outgoing belt of the endless conveyor belt that circulates between the upper outgoing path and the lower return path is rolled upward into a pipe shape around the longitudinal axis by a large number of shape-retaining rollers.
In a pipe conveyor that wraps and transports objects, the shape-retaining rollers are positioned so that the side edges of the rounded outgoing belts come into contact with or come close to each other without bunching together. A pipe conveyor characterized by the following. (2) Most of the outgoing belt of the endless conveyor belt that circulates between the upper outgoing path and the lower backward path is rolled upward into a pipe shape around the longitudinal axis by a large number of shape-retaining rollers.
In a pipe conveyor that wraps and transports objects, the side edges of the rounded outgoing belts are close to each other without bunching together, and the side edges of the returning belts are bunched together. A pipe conveyor characterized in that the position of the shape retaining roller is determined. (3) One of the shape-retaining rollers is located at the upper part and is horizontal, and its lower surface pushes down both side edges of the outgoing belt which is bent upward into a pipe shape. The pipe conveyor according to item or item (2).