JPH08151109A - Belt conveyer device - Google Patents

Abstract

PURPOSE: To provide a belt conveyer device capable of steeply inclined transport and high speed running without spilling loads. CONSTITUTION: The lateral width of the lower side belt 1 of a pair of upper and lower belts is made longer than that of the upper side belt 2, while a carrier roller 4 and holding roller 5 are disposed such that the cross section of both belts is shaped into the approximately U-shaped form and a pair of inner and outer mating rollers 6 are disposed which pinch both ends of both belts coinciding with each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is based on the polymerization of two belts,
The present invention relates to a belt conveyor transporting device that sandwiches a transported product between belts and transports it in a steep inclination or a substantially vertical direction, and particularly to a highly efficient belt conveyor transporting device that prevents spillage of a transported product during transportation.

[0002]

2. Description of the Related Art Recently, there has been an increasing demand for a belt conveyor to convey a conveyed product with a steep inclination or a substantially vertical direction. Accordingly, the development of a belt conveyor conveyer for conveying a conveyed product by sandwiching it between a pair of upper and lower belts facing each other It has progressed rapidly. FIG. 4 shows a typical example of the lower belt 1 supported by carrier rollers 4, 4 mounted on a gantry 3 and curved downward and a mountain-shaped upper belt 2 curved upward. The conveyed product M sandwiched therebetween can be moved not only horizontally but also in a direction of inclination above the repose angle of the conveyed product M on the belt. This is because the frictional force between them makes it possible to avoid sliding in the running direction on the belt during transport. In the case of a steep slope or a nearly vertical gradient, the sliding of the conveyed product due to the action of gravity is further strengthened. To prevent this, the conveyed product M interposed between both belts is subjected to a larger frictional force. As shown in FIG.
As shown in FIG. 5, a plurality of pressing rollers 5 are provided on the upper side of the upper belt 2 to positively press the conveyed article M inside.

[0003]

However, in a belt conveyor transporting apparatus for superposing such two upper and lower belts and sandwiching and transporting a conveyed product between them, a load from both end portions of the upper and lower belts is transferred. The spillage occurs, and the degree of the spillage is remarkable especially in the conveyance at a high belt speed, and the work environment around the belt conveyor is deteriorated. For this reason, there has been a long-awaited demand for a device that has no spillage from both ends, has high transfer efficiency at high speed, and can transfer at a steep slope.

[0004]

In order to solve the above-mentioned problems, in the first invention, in a belt conveyor transporting device for transporting a transported product by sandwiching it between a pair of upper and lower belts facing each other, Of the pair of upper and lower belts, the lower belt width is made longer than the upper belt width, and a plurality of carrier rollers are provided around the both belts so that the transverse cross sections of the both belts are formed in a substantially U shape. , And
A structure is provided in which a pair of inner and outer aligning rollers are arranged to squeeze the left and right ends of the both belts by matching them. Further, in the second invention, in the belt conveyor transporting device for sandwiching and transporting a transported object between a pair of opposed belts, the lower belt width of the pair of upper and lower belts is longer than the upper belt width. In addition, a plurality of carrier rollers are arranged outside the lower belt so that the cross section of the lower belt is formed in a substantially U-shape, and the upper belt is connected to the end portion of the lower belt. A plurality of pressing rollers are arranged above the upper belt so as to form a horizontal cross section that is curved substantially horizontally or upward at a lower position. Further, in the third invention, one of the aligning rollers of the first invention is provided with respect to the other by a spring, a hydraulic cylinder,
Alternatively, it is provided with a pressing means that urges and presses with an oil damper.

[0005]

In the first aspect of the present invention, since the conveyed goods inside are conveyed while the both ends of the upper and lower belts are aligned with each other by the aligning rollers, there is no spillage of the conveyed goods from both ends, and high speed operation is possible. Therefore, the transfer efficiency is remarkably improved. In the second aspect of the invention, the end portion of the upper belt is conveyed so that the end portion of the upper belt is located below the end portion of the lower belt. In the third aspect of the invention, one of the aligning rollers is constantly urged against the other, and the contact between the upper and lower belts is maintained more firmly, so the possibility of spilling of the load is further eliminated.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 3 relate to an embodiment of the present invention,
FIG. 1 is a transverse sectional view of a belt conveyor conveying device, FIG. 2 is a belt conveyor conveying device according to another embodiment, and FIG. 3 is an enlarged transverse sectional view of a main part of a belt aligning portion of the belt conveyor conveying device. FIG. 1 shows an embodiment of the first invention, in which the lower belt 1 is a plurality of (usually three) carrier rollers (also called support rollers) rotatably attached to a frame 3 via bearings. Supported by 4. On the other hand, the upper belt 2 contains the conveyed product M and is arranged so as to cover the conveyed product M.
It is arranged so as to be pressed downward by a plurality of pressing rollers 5 from the upper side. The upper belt 2 is formed in a substantially U-shape in cross section together with the lower belt 1, and both ends of the upper and lower belts are matched with each other so that their heights match each other. It is gripped by and is transported in the direction perpendicular to the paper surface (the belt traveling direction). As described above, in order to make the both ends of the upper and lower belts coincide with each other, the lateral width of the lower belt 1 needs to be larger than the lateral width of the upper belt 2 by the length in which the conveyed product M is built in, so that it is made longer. The pressing roller 5 and the aligning roller 6 are fixed to the pedestal 3 and other fixed equipment by bearings (not shown) via bearings. In the belt conveyor device of FIG. 1 configured as described above, both ends of the upper and lower belts are aligned by the aligning rollers 6 to prevent spillage of a conveyed product during transportation.

On the other hand, the one shown in FIG. 2 shows an embodiment of the second invention, and the lower belt 1 is supported by the carrier roller 4 in a substantially U-shape as in the case of FIG. In the same manner, the upper belt 2 is not U-shaped, but the conveyed article M is pressed by the pressing rollers 5, 5, 5 so that it is a substantially horizontal or gently convex shape like a pot lid. Pressing rollers are arranged so that both ends of the upper belt 2 are located at positions lower than those of both ends of the lower belt 1. Therefore, there is no pair of matching rollers at the end, and only the side roller 20 corresponding to the outer side of the matching rollers 6 and 6 in FIG. Configured to set up. In this case, although there is no match at the ends of both belts, the end of the upper belt 2 is lower than the end of the outer lower belt 1, so that no load is spilled during conveyance.

FIG. 3 shows a third invention including a mechanism for urging the inner aligning roller 6 of the aligning rollers 6, 6 shown in FIG. 1 toward the outer aligning roller 6 by a spring force. Corresponding to the embodiment. In the figure, the outer aligning roller 6A is rotatably supported by a roller bearing seat 7 mounted on a side support 8 via a bearing 6a, while the inner aligning roller 6B is detachably attached to the side support 8 by screwing. An inner cylinder 13 which is fitted inside the outer cylinder 12 whose bottom is bolted to the bracket 9 and which is slidable in the axial direction is provided, and a top plate 12a provided at the tip of the inner cylinder 13 at the tip of the outer cylinder 12. Is supported by a roller bearing seat 10 mounted on a round bar 13a penetrating through the through hole through a bearing 6b. Inner cylinder 1
3, a compression coil spring 14 is elastically mounted in a compressed state, and the inner matching roller 6B is urged toward the outer matching roller 6A while pinching the ends of the upper and lower belts 1 and 2, and as a result, Both the upper and lower belts are transferred in the belt traveling direction while being pressed together completely. Although the compression coil spring 14 is adopted as the pressing means in the embodiment of FIG. 3, a pressing means having an urging force such as an air cylinder, a hydraulic cylinder, or an oil damper can be adopted in addition to this. Further, in FIG. 3, the inner aligning roller 6B is biased toward the outer aligning roller 6A, but on the contrary, the inner aligning roller 6B may be fixed and the outer aligning roller 6A may be biased inward.
With such a structure, the adhesion of both belt ends is further strengthened as compared with that of FIG. 1, and the prevention of spilled goods is further improved.

[0009]

As described above, according to the belt conveyor conveying device of the present invention, spillage of goods during transportation can be completely prevented, so that the belt conveyor can be inclined more steeply or at a higher speed. Since it is possible to transport a transported object by using, a high-performance transportation device can be provided, and contamination of the work environment is prevented, so that maintainability is improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a belt conveyor conveying device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a belt conveyor carrying device according to another embodiment of the present invention.

FIG. 3 is an enlarged transverse cross-sectional view of a main part of a belt aligning portion of a belt conveyor carrying device according to another embodiment of the present invention.

FIG. 4 is a cross-sectional view of a conventional belt conveyor transport device.

FIG. 5 is a cross-sectional view of a conventional conveyor belt conveyor.

[Explanation of symbols]

 1 Lower Belt 2 Upper Belt 3 Frame 4 Carrier Roller 5 Holding Roller 6 Rolling Roller 6A Rolling Roller 6A Rolling Roller Outer 6B Rolling Roller Inner 6a Bearing 6b Bearing 7 Roller Bearing Seat 8 Side Support 9 Bracket 10 Roller Bearing Seat 12 Outer Tube 12a Top plate 13 Inner cylinder 13a Round bar 14 Compression coil spring 20 Side roller M Conveyed goods

Claims (3)

[Claims] 1. A belt conveyor transporting apparatus for transporting a transported object while sandwiching it between a pair of upper and lower belts facing each other, wherein a lower belt width of the pair of upper and lower belts is made longer than an upper belt width. , A pair of inner and outer members in which a plurality of carrier rollers are arranged around the both belts so that the cross sections of the both belts are formed in a substantially U-shape, and the left and right ends of the both belts are aligned and pinched. A belt conveyor transporting device, characterized in that the aligning rollers are arranged. 2. In a belt conveyor transporting device for transporting a transported object while sandwiching it between a pair of opposed belts, the lower belt width of the pair of upper and lower belts is made longer than the upper belt width, and The cross section of the lower belt is approximately U
A plurality of carrier rollers are arranged on the outside of the lower belt so as to form a V shape, and the upper belt is projected substantially horizontally or upwardly at a position lower than the end portion of the lower belt. A belt conveyor transporting device, wherein a plurality of pressing rollers are arranged above the upper belt so as to form a curved cross section. 3. A pair of aligning rollers, one aligning roller facing toward the other aligning roller, and a spring,
The belt conveyor device according to claim 1, further comprising a pressing unit that urges the liquid cylinder or an oil damper.