JP2007045582A - Merge belt conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a merge conveyor capable of merging thin carried materials by combining two types of widths of conveyors and installing a snub pulley in the middle of a power guide for preventing the drop out of a belt and keeping the belt wider than a bed. <P>SOLUTION: The merge belt conveyor is provided for merging and aligning carried materials carried via the plurality of carry-in conveyors 10a, 10b, 10c to be carried out. In a merging and aligning area, there are a wider first merge belt conveyor 11 and a second merge belt conveyor 12 shorter and narrower than the first merge belt conveyor and arranged on the downstream side of the first merge belt conveyor. The right and left power guides 20, 20 have endless belts 22 riding over the carrying surfaces of the first and second merge belt conveyors and running in a vertical plane while curving in the direction of being narrower toward the center of the merging and aligning area in view from a plane for gradually merging and aligning the carried materials. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a merge belt conveyor that joins and aligns transported objects carried in from a large number of carry-in conveyors.

A merging / aligning conveyor is known in which a mixed flow of a large number of transported articles carried in from a plurality of carry-in conveyors is sequentially fed in a row while being narrowed by a wide merge conveyor (for example, Patent Documents 1 to 3). However, these documents are intended to join substantially single shaped or mixed products such as bottles and packaged foods, and are not intended for the combined processing of mixed flow including corrugated cardboard, thick envelopes, thin objects, etc.
For this reason, a merge conveyor as shown in FIG. 9 is usually used when merging and aligning the mixed flow including the thin object. That is, a wide-width merge conveyor 35 supported by the legs 34, 34 is provided downstream of the plurality of carry-in conveyors 31, 32, 33 arranged radially, and a narrow carry-out belt that is aligned and conveyed downstream of the merge conveyor 35. A conveyor 40 is provided. The upper and lower sides of the merge conveyor 35 are arranged obliquely in a direction narrowing toward the center of the merging / aligning section, and run left and right in the vertical plane on the merging conveyor to gradually merge and align the conveyed items. Power guides 36 and 36 are provided. The left and right power guides 36, 36 are suspended in pairs from the upper part of the merge conveyor 35 so as not to interfere with the transfer surface of the merge conveyor 35, and are set up outside the upstream leg 34 of the merge conveyor 35. The drive unit 37 is supported by the post 38, and a portal frame 39 is built near the downstream leg 34 so as to cover the downstream end of the merge conveyor 35 to support the front ends of the power guides 36 and 36. Conveyed materials as a mixed flow carried into the merging / aligning portion are gradually merged and aligned by the left and right power guides 36 and 36 while being moved by the merge conveyor 35 and sent to the carry-out conveyor 40 one by one. It was.

Japanese Patent Laid-Open No. 6-24546 (Gazette page 3, left column, lines 18-30, FIG. 1). Japanese Patent Application Laid-Open No. 8-67334 (Gazette page 3, left column, lines 16 to 37, FIG. 1). JP 2001-315955 A (publication 3rd page, right column 9th line to 4th page, left column 15th line, FIG. 1).

As shown in FIG. 9, the conventional merge conveyor has the number of conveyors to be brought into the merging line, for example, the length that can be conveyed by the machine width of three, so the conveyor size increases, It is heavy and requires a reinforcing material at the installation location, and it is impossible to transport the finished product. Further, since the machine width of the merge conveyor is large, it cannot be connected or supported in the middle, and a portal frame for supporting the merge conveyor across the downstream side of the power guide is required.
The present invention eliminates the above-mentioned problem by combining a merge conveyor with two types of machine width conveyors, and also a direction in which a snubb pulley is installed in the middle part of the power guide and narrows toward the center of the merged alignment part as seen from the plane. The belt is prevented from falling off by running in the vertical plane on the merge belt while curving in the belt and gradually merging and aligning the transported objects. An object is to provide a merge conveyor that is made possible.

In order to achieve the above object, the present invention solves the above problems by combining a merge conveyor with two types of machine width conveyors. That is, according to the first aspect of the present invention, in the merge belt conveyor that merges and unloads the conveyed products that are carried in from a large number of carry-in conveyors, the merge and align unit includes a wide first merge belt conveyor and a downstream of the first merge belt conveyor. And a second merging belt conveyor having a shorter length than the first merging belt conveyor and having a narrower width, straddling the conveying surface of the first and second merging belt conveyors, and installing a snubbing pulley in the middle. The left and right power guides with endless belts that run in the vertical plane on the merge belt while gradually curving in the direction narrowing toward the center of the merge alignment section as viewed from the end, and gradually align the conveyed objects. Features.
According to a second aspect of the present invention, a snubb pulley is installed in the middle portion of the power guide and the belt is prevented from falling off by bending when viewed from above, and the width of the belt is determined from the width of the power guide bed or the height of the guide frame. By enlarging the belt, the lower edge of the belt protrudes and comes into contact with or close to the belt of the merge conveyor, so that a thin object or sealed document in the conveyed object can be smoothly joined without being caught between the power guide belt and the merge belt. It is possible to make it possible.
According to a third aspect of the present invention, the endless belt provided on the power guide is widened in the vertical direction so as to be close to the merge conveyor belt. The merging conveyance is possible without causing pinching between the belt lower edge and the merge belt.

  As described above, the present invention eliminates the need for a large portal frame by combining two types of machine-width conveyors with the merge conveyor, and each of the two power guides arranged across the first merge conveyor is a unit. Since it can be transported after being manufactured and adjusted at the factory, it can be completed by simply installing it on site, so the construction period can be shortened. In addition, the left and right power guides arranged across the conveying surfaces of the first and second merge belt conveyors are curved in a direction narrowing toward the center of the merging alignment portion when seen from the plane, and are in a vertical plane on the merge belt. Provided with an endless belt that travels and gradually merges and aligns the conveyed items, and a snub pulley is provided in the middle of the power guide and curved toward the center of the merged alignment portion when viewed from the plane, making it possible to prevent the belt from falling off. . In addition, by making the lower belt width of the power guide belt vertically running close to the merge conveyor belt, the thin object or the sealed document in the conveyed object is placed between the lower edge of the endless belt and the merge belt. It is possible to reliably achieve confluence conveyance without causing pinching.

FIG. 1 is a perspective view of a merging portion of a conveyance line equipped with the merge belt conveyor of the present invention, and FIG. 2 is a plan view of FIG.
The present invention is a merging belt conveyor for merging and unloading transported objects carried in from a large number of loading conveyors 10a, 10b, and 10c, and having a merging and aligning portion having a wide first merging belt conveyor 11 and a first merging belt. A second merging belt conveyor 12 having a shorter length than the first merging belt conveyor and narrower than the first merging belt conveyor is disposed downstream of the belt conveyor, and straddles the conveying surfaces of the first and second merging belt conveyors, and a snubb pulley in the middle portion. 23 and a take-up unit 24 are provided, and an endless guide belt 22 is provided which travels in a vertical plane while curving in a direction narrowing toward the center of the merging and aligning portion when viewed from above, and gradually merges and aligns the conveyed products. Left and right power guides 20 are provided.
The wide first merging belt conveyor 11 is supported by legs 14 standing at four corners, and the second merging belt conveyor 12 is supported by a leg or base (not shown). Further, the power guide 20 is fixedly mounted on posts 19, 19 standing on the sides of the legs 14, 14 by placing stands 28, 28 provided near the rear end and front end of the frame of the power guide 20. The stand 28 may be continuous at the rear end and the front end of the frame, or may be a part of the frame on the back side of the conveyance surface. In the figure, reference numeral 15 is a take-up unit, 16, 18 and 25 are drive units, and 17 is a tension pulley.

FIG. 3 is an enlarged plan view of the power guide 20. The power guide 20 connects a large number of divided frames (six in the figure) 21, and provides snubb pulleys 23, 23 at each connecting portion, and supports 27 (also serves as a stand 28) behind it, and is seen from the plane. A skeletal part that is gently curved as viewed is formed, and a drive unit 25 is attached to one end and an end pulley 29 is attached to the other end. The frame 27 is fixed between the ends of the series of curved frames 21 through brackets 26 that appropriately support the frames, and the take-up units 24 and 24 are supported from the frame 21. It is fixed to the post to stand on the floor. A guide belt 22 is put on the drive unit 25, the end pulley 29, and the snubber pulleys 23, 23 of the power guide 20 so as to face each other on the merge conveyor as shown in FIGS. It enables merging and transporting without causing the sealed documents to be pinched.
4 is an enlarged sectional view taken along line AA in FIG. 3, FIG. 5 is an enlarged sectional view taken along line BB in FIG. 3, FIG. 6 is an enlarged sectional view taken along line CC in FIG. FIG. 8 is an enlarged cross-sectional view taken along line DD of FIG. 3, and FIG. 8 is an enlarged side view taken along line EE of FIG. In FIG. 6, reference numeral 24a and reference numeral 24b in FIG. 7 are tension pulleys constituting a take-up unit.

  As described above, the present invention solves the above problem by combining a merge conveyor with two types of machine width conveyors, and also has a snub pulley installed in the middle of the power guide to bend it when viewed from the plane. By preventing the power guide belt from falling off, the belt width is made larger than the width of the power guide bed (the width in the guide frame height direction) and the belt lower edge protrudes to contact or approach the belt of the merge conveyor. This enables smooth merging of thin objects without biting between the power guide belt and the merge belt.

The perspective view of this invention merge conveyor. The top view of FIG. The enlarged top view of the power guide in an intake belt conveyor. The expanded side view in the AA line of FIG. The expanded sectional view in the BB line of FIG. The expanded sectional view in the CC line of FIG. The expanded sectional view in the DD line of FIG. The expanded sectional view in the EE line of FIG. The perspective view of a conventional merge conveyor.

Explanation of symbols

10a, 10b, 10c Loading conveyor 11 First merge belt conveyor 12 Second merge belt conveyor 13 Unloading conveyor 14 Leg 15 Take-up unit 16 Drive unit 17 Tension pulley 18 Drive pulley 19 Post 20 Power guide 21 Frame 22 Vertical guide belt 23 Snub pulley 24 Take-up unit 24a, 24b Tension pulley 25 Drive unit 26 Arm 27 Support 28 Stand 29 End pulley

Claims (3)

In a merge belt conveyor for merging and aligning and transporting articles to be conveyed from a large number of carry-in conveyors, a merge and alignment portion is formed from a wide first merge belt conveyor and the first merge belt conveyor downstream of the first merge belt conveyor. A short merging and narrow second merging belt conveyor is arranged, and the merging and aligning portion of the merging and aligning portion is disposed across the transport surface of the first and second merging belt conveyors and a snubb pulley is installed in the middle portion when viewed from the plane. A merge belt conveyor comprising left and right power guides provided with endless belts that run in a vertical plane on the merge belt while curving in a direction narrowing toward the center to gradually merge and align the conveyed items. A snubb pulley is installed in the middle part of the power guide to prevent the belt from falling off by bending it when viewed from above, and the belt width is made larger than the width of the power guide bed or the guide frame in the height direction. By allowing the edges to protrude and contact or close to the belt of the merge conveyor, a thin object or sealed document in the conveyed object can be smoothly merged without being caught between the power guide belt and the merge belt. The merge belt conveyor according to claim 1.   The endless belt provided on the power guide has a lower belt width that travels vertically and is brought close to the merge conveyor belt, so that a thin object or a sealed document in the conveyed object merges with the lower edge of the endless belt. The merge belt conveyor according to claim 1, wherein the merging and conveying can be performed without causing pinching with the belt.

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