JP3046936U - Belt conveyor meandering prevention device - Google Patents

Abstract

(57) [Problem] To provide an apparatus for preventing meandering of a belt conveyor, in particular, using a flat flat belt as a transport belt. SOLUTION: In a belt conveyor using a flat flat belt as a transport belt, a belt on which a transport object is placed and transported is provided at an edge of the belt on the side where the transport of the object is completed and returned, and an edge of the belt. A meandering prevention device for a belt conveyor, comprising a guide member for holding an upper surface, an edge lower surface, and one side surface of an edge at a specific position, wherein the guide member has an outer surface formed of a casing and an inner surface formed of a lubricant. [Effect] The conventional meandering adjustment of the belt becomes unnecessary, and the work in a narrow place is reduced. Also, spillage due to meandering of the belt is drastically reduced, and the number of times of cleaning for removing the spilled object is reduced.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a meandering prevention device for a belt conveyor, and more particularly, to a device using a flat flat belt as a transport belt.

[0002]

[Prior art]

 In a belt conveyor using a flat flat belt as a transport belt, meandering and offset (hereinafter, referred to as meandering) of the belt become problems. This meandering of the conveyor belt can be basically prevented by adjusting the pulleys at both ends of the belt conveyor.However, since the conveyor belt is flat, the tensile elasticity of each part cannot be completely uniform. Therefore, simply adjusting the pulleys cannot solve the problem of meandering of the conveyor belt.

For this reason, various countermeasures have been taken in the past, but taking measures to prevent meandering of the transport belt on the transport side on which the object is placed and transported is a problem with respect to the transport of the object. This is practically impossible, and it is common practice to take measures to prevent meandering of the return-side transport belt after transport is completed. I have.

Here, as a general measure for preventing meandering of a flat belt, one disclosed in Japanese Utility Model Publication No. 59-11924 is known. In order to prevent meandering of a driving belt consisting of a flat belt for driving a conveyor roller of a roller conveyor, not a conveyor belt of a belt conveyor, the publication discloses a drive on a driving side which is driven in contact with the conveyor roller. The structure in which the rotating guide is opposed to the side surfaces of both side edges of the belt is shown.

[0005]

[Problems to be solved by the invention]

 When the structure disclosed in the above-mentioned publication is applied to prevent the meandering of the drive belt that drives the transport roller of the roller conveyor, the width of the drive belt is relatively narrow, so that the structure has a considerable effect. The width of the drive belt is sufficiently narrow with respect to the width of the conveyor frame, so there is sufficient room on both sides of the drive belt, and slight meandering is allowed. Yes, but it was insufficient for relatively wide belts used for conveyor belts.

In other words, if the rotation guides are merely opposed to the side surfaces of both side edges of the flat belt, if the width of the flat belt is relatively wide, when the belt meanders, the rotation guides may be used. The entire belt cannot be pushed back, and the belt is so wide that one side edge of the belt that hits the rotating guide is curved in the width direction (cross-sectional direction) and undulates. The belt may not be corrected, and in the case of a conveyor belt on a belt conveyor, there is no large difference between the width of the conveyor frame and the width of the conveyor belt, and there is not enough room on both sides of the conveyor belt, so that the belt meanders. Prevention must be strictly performed.

An object of the present invention is to solve the above-mentioned problems. In a belt conveyor using a flat belt as a transport belt, the belt may be an obstacle to transport of an object, The aim is to take effective measures to prevent meandering of the conveyor belt on the return side where there is no risk of disturbing the placement of the auxiliary equipment on the conveyor.

[0008]

[Means for solving the problems]

 The gist of the present invention lies in the following means. (1) In a belt conveyor using a flat flat belt as a transport belt, the belt on which the transported object is placed and transported is placed at the edge of the belt on the side where the transport of the object is completed and returned, and the edge of the belt. A meandering belt conveyor having a guide member for holding the upper surface, the lower surface of the edge, and one side surface of the edge at predetermined positions, wherein the guide member has an outer surface formed of a casing and an inner surface formed of a lubricant. Prevention device. (2) A meandering prevention device for a belt conveyor, wherein a high-molecular synthetic resin material is selected as a lubricant for the guide member used in claim 1.

(3) A meandering preventing device for a belt conveyor, wherein the lubricating material for the guide member used in claim 1 is a plate-shaped material and is mounted in a casing. (4) A meandering prevention device for a belt conveyor, wherein the plate-like lubricant of the guide member used in claim 1 has a thicker side surface than upper and lower surfaces. (5) A meandering prevention device for a belt conveyor, wherein the lubricant of the guide member used in claim 1 is projected outward from the inner surface of the casing.

[0010]

[Embodiment of the invention]

 The guide member of the belt conveyor of the present invention faces the side surface of the edge of the conveyor belt, the upper surface of the edge of the belt, and the lower surface of the edge, and is installed at an appropriate position with respect to the return belt. Since the edge is sandwiched from above and below, the edge of the conveyor belt does not bend in the width direction (cross-sectional direction) and does not undulate. Therefore, if the conveyor belt is to meander for some reason, In this case, meandering of the conveyor belt is prevented by a guide member installed on the side of the edge of the conveyor belt.

Hereinafter, an example of the belt conveyor of the present invention will be described with reference to the drawings. FIG. 1 is a cutaway perspective view schematically showing a belt conveyor, and a guide member 10 described later is installed only in a part. In the figure, reference numeral 1 denotes a belt conveyor, on both sides of which a frame 6 usually made of a metal plate is installed, and a support plate (not shown) fixed to the frame is provided in the width direction. It extends below the belt 7 from both sides and holds the belt 7.

End pulleys 2 are respectively supported at both ends in the length direction of the belt conveyor 1 via support members (not shown). A drive pulley 3 is supported below the intermediate portion via a support member (not shown). A snap roller 4 is disposed on both upper sides of the drive pulley 3, and a return roller 5 is disposed below the belt conveyor 1 between the drive pulley 3 and the end pulley 2.

As described above, the endless transport belt 7 composed of a wide flat belt is wound around the pulleys 2 and 3 and the roller 4, and the transport belt 7 is rotated by the drive pulley 3. Between the end pulleys 2 at both ends, and is supported by the upper surface of a support plate (which may be a support roll) and the upper portion of the return roller 5, so that the transfer side moves on the upper surface of the support plate. Although not shown, the transport belt 7 places and transports an object.

In the belt conveyor conveying device having such a configuration, according to the present invention, an edge of the conveying belt 7 on the return side with respect to the conveying belt 7 on the conveying side is attached to the edge of the conveying belt 7 on the returning side. As shown in FIG. 2, a high-lubricity polymer synthetic resin (for example, having a friction coefficient of 0.08) is provided on the inner surface of the guide member 10 as shown in FIG. A plate-like material made of (plastic) is mounted, and it is held from outside by a casing 12 made of metal (for example, iron, iron alloy, stainless steel, etc.).

The lubricant 11 may be coated on the inner surface of the casing 12 by an appropriate method. However, if the thickness of the coating is thin, the lubricant 11 may be exposed due to friction with the belt 7. Is undesirable because the belt 7 is worn. Therefore, a plate-like material having an appropriate thickness is suitable.

Further, since the side surface of the belt 7 often comes into contact with the lubricant 11 of the guide member 10 due to the meandering of the belt 7, the plate-like lubricant 11 has a thicker side surface 11a than the upper surface 11b and the lower surface 11c. Is effective against abrasion. Further, it is preferable that the lubricating material 11 is disposed so as to protrude outward from the inner surface of the casing 12 because the contact between the metal casing 12 and the belt 7 is reduced. Here, the guide members 10 may be formed separately and then integrated, or the invention is not limited thereto, and the guide members 10 may be integrally formed from the beginning.

The guide member 10 can be arranged at an appropriate position corresponding to the side edge of the return-side belt 7. For example, when the belt 7 is shifted only on one side, The belt 7 may be installed on one side of the belt 7, and if the one side cannot be identified, the belt 7 may be attached to both sides of the side edge. The mounting positions may be opposite to each other with the belt interposed between the side edges, or may be staggered on both sides of the return belt 7 without facing each other. Further, there is an offset in the end pulley 2 as a location that greatly affects the meandering of the belt. Therefore, it is effective to dispose the guide member 10 at a position close to the end pulley 2.

Further, the arrangement position and the number of the guide members are not limited to the specific positions as described above, and it is preferable to increase or decrease according to the length of the belt conveyor. It is desirable to arrange the guide member 10 symmetrically in the left and right directions, since one position is provided on each side of the guide member 10. However, the present invention is not limited to this.

If the mounting position (with respect to the belt width direction) of the guide member 10 can be adjusted, it is possible to cope with a small change in the belt width. In addition, depending on the degree of deviation of the belt 7, it can be adjusted to an appropriate position in the belt width direction, which is effective in work. For example, as shown in FIG. 3, if a position adjusting mechanism 13 constituted by attaching a bolt 14 to the outer surface of the side edge of the casing 12 and providing a nut 15 at a position penetrating the frame 6 is provided as shown in FIG. The position of the bolt 14 can be easily adjusted by taking the bolt 14 in and out of the width direction.

Furthermore, if a holding member 16 for supporting the guide member 10 from below is provided in order to prevent the guide member 10 from hanging down, the guide member 10 can be held even if the guide member 10 is moved in the belt width direction. Therefore, drooping can be prevented. Reference numeral 17 denotes a bracket for mounting the holding member 16 on the frame 6 to support it.

In this manner, the guide member 10 is made to face the edge side surface of the conveyance belt 7 on the return side, and the upper surface of the edge and the lower surface of the edge on both sides. Edge of the conveyor belt 7 from above and below, the edges on both sides of the conveyor belt 7 do not undulate in the width direction (transverse section direction), and therefore, when the conveyor belt 7 is about to meander. The meandering of the conveyor belt 7 can be prevented by the guide member 10 installed on the side of the edge of the conveyor belt 7.

According to the results of actual work, meandering more than 20% of the belt width occurred frequently before attaching the devised product, but by implementing the present invention, the meandering was adjusted to within 5% of the belt width. Can be adjusted.

[0023]

[Effect of the invention]

 As described above, according to the present invention, the lubricating material of the guide member is made of three surfaces opposing the edge side surface, the edge upper surface, and the edge lower surface of the return-side conveyance belt, and the conveyance belt is formed by the guide member. Since the edges of both sides of the conveyor belt are sandwiched from above and below, even if the conveyor belt begins to meander and the side surface of the edge of the conveyor belt hits the lubricant of the guide member, the edge of the conveyor belt will not move in the width direction (cross-sectional direction). When the conveyor belt tries to meander, the guide member installed on the side of the edge of the conveyor belt prevents the conveyor belt from meandering, and effectively prevents the conveyor belt from meandering. The effect is particularly large for short belt conveyors.

[0024] Furthermore, it is unnecessary to adjust the meandering of the belt as in the related art, and work in a narrow place is reduced. Also, spillage due to belt meandering is drastically reduced, and the number of cleanings to remove spilled objects is reduced. Furthermore, the belt has a great effect in practical use, such as a reduction in belt damage due to meandering and an increase in power consumption due to meandering.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view schematically showing a belt conveyor.

FIG. 2 is a perspective view showing the guide member body of the present invention.

FIG. 3 is a side view showing an example of an attached state of a guide member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Belt conveyor 2 End pulley 3 Drive pulley 4 Snap roller 5 Return roller 6 Frame 7 Belt 10 Guide member 11 Lubricant 11a Side surface 11b Upper surface 11c Lower surface 12 Casing 13 Position adjustment mechanism 14 Bolt 15 Nut 16 Holding member 17 Bracket

Claims (5)

[Utility model registration claims] In a belt conveyor using a flat flat belt as a transport belt, a belt on which a transport object is placed and transported is provided with an edge of the belt on the side of the belt to which the transport of the object is completed and returned. A guide member for holding a top surface, a bottom surface of the edge, and one side surface of the edge at a specific position, wherein the guide member has an outer surface formed of a casing and an inner surface formed of lubricating material; Prevention device. 2. A meandering prevention device for a belt conveyor, wherein a high-molecular synthetic resin material is selected as a lubricant for the guide member used in claim 1. 3. A meandering preventing device for a belt conveyor, wherein a lubricating material for a guide member used in claim 1 is mounted in a casing as a plate-like material. 4. A meandering prevention device for a belt conveyor, wherein the side surface of the plate-shaped lubricant of the guide member used in claim 1 is thicker than the upper and lower surfaces. 5. A meandering preventing device for a belt conveyor, wherein a lubricating material of a guide member used in claim 1 is protruded outward from an inner surface of a casing.