JP2000044033A - Driving device of edge drive conveyer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving device of edge drive conveyer which can operate to run rapidly constantly and securely, without generating the extension and the damage of an endless belt, and using a little cost of power. SOLUTION: While a pair of short size endless driving chains 11 at both sides are provided drivable synchronously in the same direction in order to pressure contact both ends of an endless belt 4 to compose an edge drive conveyer 1 in the holding condition, belt pressing pieces 12 are provided by projecting, to the link plates 13 to compose the endless driving chains 11, and the endless driving chains 11 are friction driven synchronously in the same direction, while the belt pressing pieces 12 are pressure contacting to both sides of the endless belt 4 in the holding condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a drive device for an edge drive conveyor.

[0002]

2. Description of the Related Art Conventionally, an edge drive conveyor configured to freely run an omni grit belt, an omni flex belt, or the like with a friction drive device can be made into an infinite number of conveyors with one belt. . No transfer equipment is required and there is almost no damage to the conveyed goods. The belt can be turned and the front and back can be used alternately. Stepless speed change is possible with one hand switch. The belts can be washed and always used hygienically. A wide range of layouts can be made by effectively using the space. It is widely used for transporting required foods such as packages and breads.

FIGS. 7 and 8 show known friction drive devices for such an edge drive conveyor, which will be described with reference to FIG. That is, in the figure, 1 is an edge drive conveyor arranged in a substantially spiral shape, 2 is a pair of guide rails having a substantially L-shaped cross section on both sides constituting the edge drive conveyor 1, and 3 is a guide rail on both sides. An endless omni-grid slidably mounted between the guide rails 2 on both sides while supporting the support rails 4 of the required strips disposed at a predetermined interval between the two. The endless omni grit belt 4 is formed by connecting wire bars of a required length, which are arranged in parallel at equal pitches, with a substantially U-shaped connecting plate to form a stretchable and flexible belt shape. Have been. Reference numeral 5 denotes a friction drive device which is disposed inside each corner portion of the endless omni grit belt 4 so as to be able to be driven synchronously. Reference numeral 6 denotes a substantially arcuate movable guide rail which constitutes the friction drive device 5. Reference numeral 7 denotes a take-up pressing member that presses and supports both ends of the movable guide rail 6, reference numeral 8 denotes an endless drive chain that is movably disposed along the movable guide rail 6, and reference numeral 9 denotes an endless drive chain. 8 is a substantially U-shaped belt pressing piece protruding from the outside of each of the link plates constituting the belt member 8.

[0004] Then, the conventional example configured as described above,
While the movable guide rail 6 is pressed and supported in the outer direction of the corner portion by the pressing member 7, each belt pressing piece 9 is pressed against the inner end of the end portion of the endless omni grit belt 4 and the endless drive chain. 8 are movable guide rails 6
, And the endless omni grit belt 4 is caused to travel in a predetermined direction by a frictional force between each belt pressing piece 9 and the inner end of the end portion of the endless omni grit belt 4.

[0005]

By the way, in the conventional example constructed as described above, the belt pressing piece 9 is pressed against the inner end of the corner portion of the endless omni grit belt 4 to be pressed outwardly. Since the endless drive chain 8 is driven to run by the frictional force, not only a large driving force is always required, but also a large tension acts on a corner portion of the endless omni grit belt 4. It is. For this reason, a large amount of power is required, resulting in not only high costs but also drawbacks such as the endless omni grit belt 4 being easily stretched or damaged.

SUMMARY OF THE INVENTION The present invention solves the conventional problems at a glance, and enables an edge drive that can always and quickly run with a small power cost and without causing extension or damage of an endless belt. It is intended to provide a conveyor driving device.

[0007]

That is, according to the present invention, a pair of short endless drive chains 11 on both sides are synchronously driven in the same direction so that both sides of an endless belt 4 constituting an edge drive conveyor 1 are pressed in a sandwiching manner. And each link plate constituting each endless drive chain 11
The belt pressing pieces 12 are protrudingly provided on each of the belts 13, and the belt pressing pieces 12 are pressed against both sides of the endless belt 4 so as to be frictionally driven in the same direction while the endless drive chain 11 is frictionally driven. Characterized by
The gist is a driving device for an edge drive conveyor.

[0008] The drive device according to the present invention is appropriately disposed at a required location along the traveling path of the edge drive conveyor 1. Then, the endless drive chain 11 is synchronously driven in the same direction while the belt pressing pieces 12 are pressed against both sides of the endless belt 4 in a sandwiching manner, and the frictional force between the belt pressing pieces 12 and both ends of the endless belt 4 causes the endless belt. 4 in a predetermined direction.

[0009]

Embodiments of the present invention will be described below with reference to an embodiment shown in the drawings. 1 to 6 show a driving device 10 according to the present invention.
Reference numeral 1 denotes a pair of short endless drive chains on both sides of the drive unit 10, and reference numeral 12 denotes a substantially U-shaped belt pressing piece projecting from each link plate 13 of each endless drive chain 11. The endless drive chains 11 on both sides are configured to press the belt pressing pieces 12 on both sides of the endless omni-grit belt 4 constituting the edge drive conveyor 1 in a sandwiching manner, and to drive them synchronously in the same direction. Reference numeral 14 denotes a pair of sprocket wheels on both sides around which the endless drive chain 11 is wound, and reference numeral 15 denotes a motor for rotating one of the sprocket wheels 14 in a predetermined direction.
Reference numeral 16 denotes a spring-like take-up provided on the other sprocket wheel 14, and reference numeral 17 denotes an endless drive chain 11 disposed on both sides of the endless omni-grit belt 4 to guide the same. A pair of guide rails on both sides
Reference numerals 18 and 19 denote an inner guide rail member and an outer guide rail member having a U-shaped cross section constituting each guide rail 17, and one of the inner guide rail members 18 is a required fluid such as an air cylinder. It is urged in the same direction via the pressure cylinder 20.

Reference numeral 21 denotes a core of the endless omni grit belt 4.
In the take-up provided in the corner, the take-up 2
Reference numeral 1 denotes a frame-shaped movable frame 23 attached to an arcuate inner guide rail 22 movably disposed along the inside of the corner portion, and a fixed frame attached to the movable frame 23.
A required fluid pressure cylinder 25 such as an air cylinder is mounted via a frame 24, and the fluid pressure cylinder 25 presses the inner guide rail 22 outward through a movable frame 23 to form the endless omni grit belt 4. It is said that the tension is properly adjusted. Others are the same as the conventional example, and the same reference numerals indicate the same parts.

In the embodiment configured as described above, as shown in FIG. 5, it is disposed at a required place along the traveling path of the edge drive conveyor 1. When the motor 15 is started, the driving sprocket wheels 14 are driven in a predetermined direction, and the endless driving chains 11 on both sides are driven synchronously in the same direction. Then, since each belt pressing piece 12 of the both-side endless drive chain 11 presses the both ends of the endless omni-grid belt 4 in a sandwiching manner, a frictional force acts therebetween, and the endless omni-grit belt 4 travels in a predetermined direction. Start and transport the required objects. At this time, the endless omni-grit belt 4 is driven by synchronously driving the endless drive chains 11 on both sides in the same direction while pressing both sides of the endless omni-grit belt 4 in a sandwiching manner by the belt pressing pieces 12, so that the conventional endless omni grit belt 4 runs. A large tension is not applied to the endless omni grit belt 4 itself, and the running operation can be always performed reliably with little power cost and without any extension or damage.

In the above embodiment, one of the endless drive chains 11 on both sides is freely urged to the other via a hydraulic cylinder 20, but both of them are opposed to each other by the hydraulic cylinder 20. It may be configured to be biased. Edge drive conveyor 1
Although the endless omni grit belt 4 is shown as an endless belt constituting the above, the present invention is not limited to this, and an endless omni flex belt, an endless filament mesh belt, or the like may be adopted.

[0013]

Since the present invention is constructed as described above, the endless drive chains 11 on both sides are synchronously driven in the same direction while pressing the belt pressing pieces 12 from both sides of the endless belt 4 in a sandwiching manner. The endless belt 4 can be caused to travel in a predetermined direction by a frictional force between the belt pressing piece 12 and both sides of the endless belt 4, and a large tension is applied to the endless belt 4 itself as in the conventional example. Therefore, the running operation can be performed quickly and reliably at a low power cost without causing elongation or damage.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a side view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is an enlarged sectional view of a main part.

FIG. 5 is a plan view showing an arrangement state.

FIG. 6 is a partially enlarged plan view showing a take-up 21 in a corner portion.

FIG. 6 is a plan view showing a conventional example.

FIG. 7 is an enlarged plan view of the main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Edge drive conveyor 4 Endless omni grit belt 10 Driving device 11 Endless drive chain 12 Belt pressing piece 13 Link plate 17 Guide rail 18 Inner guide rail member 19 Outer guide rail member 20 Fluid pressure cylinder

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[Procedure amendment]

[Submission date] October 29, 1998 (1998.10.
29)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a side view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is an enlarged sectional view of a main part.

FIG. 5 is a plan view showing an arrangement state.

FIG. 6 is a partially enlarged plan view showing a take-up 21 in a corner portion.

FIG. 7 is a plan view showing a conventional example.

FIG. 8 is an enlarged plan view of the main part.

DESCRIPTION OF SYMBOLS 1 Edge drive conveyor 4 Endless omni grit belt 10 Drive device 11 Endless drive chain 12 Belt pressing piece 13 Link plate 17 Guide rail 18 Inner guide rail member 19 Outer guide rail member 20 Fluid pressure cylinder

Claims (2)

[Claims] 1. A pair of short endless drive chains 11 on both sides are provided so as to be synchronously driven in the same direction so as to press both sides of an endless belt 4 constituting an edge drive conveyor 1 in a sandwiching manner. Each link plate 13 constituting the driving chain 11 is provided with a belt pressing piece 12 projecting therefrom. The belt pressing piece 12 is pressed against both sides of the endless belt 4 in a sandwiching manner, and the endless driving chain 11 is the same. A drive device for an edge drive conveyor, wherein the drive device is configured to be frictionally driven synchronously in directions. 2. A driving device for an edge drive conveyor according to claim 1, wherein at least one of the endless drive chains is biased to the other via a biasing member.