JPH101204A - Metallic net belt conveyor and meandering prevention method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a metallic net belt conveyor from meandering by mounting guide collars fitted spacedly by a distance corresponding to the width of a metallic net belt, and a means adjustably moving a return roller the axial direction, on a return roller on the inlet side. SOLUTION: Guide collars 5 spacedly by a distance corresponding to the width of a metallic net belt 1 are fitted to a return roller 3 on the inlet side. An adjustable moving means 4 in the axial direction is mounted on the return roller 3, and the position of the metallic net belt 1 on the inlet side roller is regulated so as to be fixed. In the adjustable moving means 4, a screw type fine adjustment mechanism 11 fixed by a lock nut 10 is mounted on the inlet side return roller 3, and the running position of the metallic net belt is regulated so as to be stabilized and fixed. Hereby, a metallic net type conveyor belt can be run at high speed without fear of meandering, and it can cope with improvement of productivity.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal net belt conveyor (also referred to as a mesh belt) that does not meander during traveling and a method for preventing the metal net belt conveyor from meandering. It is suitable for conveying plastic strands and pellets, food, electric and mechanical parts, etc., which coexist with liquids such as water and oil.

[0002]

2. Description of the Related Art Chain conveyors, metal net belt conveyors, and the like are used to continuously immerse and pass a conveyed object in a liquid and to convey the solid while separating the liquid from the conveyed object where solid and liquid coexist. , Bucket conveyors and the like are widely used. Above all, metal net belt conveyors, which use metal nets made of stainless steel wire as transport belts, have excellent corrosion resistance and can transport relatively small particles and chunks efficiently while separating water and oil. There are advantages that can be. Due to the above advantages, metal net belts have been widely used in fields such as plastic manufacturing, food processing, and metal heat treatment.

[0003] However, the metal net belt used for the conveyor has a disadvantage that it is easily deformed at all times due to its flexible structure, and if the existing belt conveyor system is used, it is difficult to drive by pulleys and it is easy to meander. Was. These drawbacks are problems that do not occur if the running positions of the pulleys and belts are adjusted as designed. However, the adjustment required a fair amount of skill and experience and was not a practical solution. Therefore, in a conventional metal net belt conveyor, a chain capable of covering a small adjustment error is attached to both sides or one side of the belt to drive the belt and prevent meandering.

[0004]

In recent years, it has become essential to increase the speed of conveyance of conveyors in order to improve productivity. However, even if the belt running speed is increased with the conventional chain drive, the belt vibrates violently, causing operational and safety problems, and it is very difficult to achieve a desired level of conveying speed. Furthermore, in order to drive the pulley at high speed without a chain, the metal net belt must be flexible and tough, but there is a problem that the more flexible the net belt is, the easier it is to meander. However, this problem does not occur basically if the position of the pulley and the traveling position of the conveyor belt are as designed.

On the other hand, an edge guide is attached to the metal net belt, guide rails are provided on both sides of the belt running belt to hold the edge guide, and the metal net belt can be driven by pulleys without using a chain, thereby enabling high-speed running. Became. However, even with this metal net belt with an edge guide, it was found that the guide rails were extremely worn out by high-speed conveyance if the position of the pulley and the traveling position of the conveyor belt were not sufficiently adjusted. The present invention has been completed with an object to provide a metal net belt conveyor that does not meander and a method for preventing the metal net belt conveyor from meandering.

[0006]

The present invention will be described with reference to the drawings. In order to solve the above-mentioned problem, the present invention provides a guide collar 5 attached to a return roll 3 on the entrance side at a distance corresponding to the width of the metal net belt 1, and means for adjusting and moving the return roll in the axial direction. 4 is provided, and a metal net belt conveyor is provided. In addition, both ends of the pulley (2 or 2 ') are simultaneously moved in the direction of the belt to move the two pulleys (2 and 2').
(1) A metal net belt conveyor provided with a means 6 for adjusting the distance between axes is provided. A guide collar 5 attached to the return roll 3 on the entrance side at a distance corresponding to the width of the metal net belt 1, combining the features of these two metal net belt conveyors, and a return roll adjusted and moved in the axial direction. And means (6) for adjusting the distance between the two pulleys (2 and 2 ') by simultaneously moving both ends of the pulley (2 or 2') in the belt direction. The metal net belt conveyor characterized in that the object of the present invention can be achieved at a high level. Further, guide rails 8 may be provided on both sides (7 and 7 ') or one side (7 or 7') of the belt running belt to hold the end of the metal net belt and prevent meandering. . A polyamide resin is preferably used for the material of the guide collar and / or guide rail.

According to the present invention, a guide collar 5 is further attached to the return roll 3 on the entrance side at a distance corresponding to the width of the metal net belt 1, and the return roll is moved and adjusted in the axial direction. A meandering prevention method for a metal net belt conveyor, wherein both ends of a pulley are simultaneously moved in the belt direction by the same operation, and a pulley (2 and 2 ′) is provided. The present invention provides a method for preventing meandering of a metal net belt conveyor, wherein the distance between the shafts is adjusted.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described with reference to the drawings. FIG. 1 is a partially cutaway schematic front view of a metal net belt conveyor of the present invention, and FIGS. 2 and 3 are schematic longitudinal sectional views in a direction perpendicular to the belt, all showing embodiments. In the present invention, the entrance side means the carry-in side of the conveyor belt.

First, the present inventor has found that if the position of the metal net belt 1 on the pulley 2 on the entrance side is not moved during operation, it is effective in preventing meandering. But,
It has been found that the metal net belt 1 is much easier to move than a rubber belt or the like, and that meandering cannot be avoided unless some restrictions are implemented. Therefore, as a result of studying the regulation of the traveling position of the metal net belt to regulate the traveling position of the metal net belt to a predetermined fixed position during operation, the present invention has revealed that the return roll 3 which has conventionally been simply attached to support the load of the conveyor belt is used. A guide collar 5 is attached to at least the return roll 3 on the entrance side at a distance corresponding to the width of the metal net belt 1, and further, an adjusting and moving means 4 in the axial direction is mounted on the return roll 3. The position of the metal net belt 1 on the roll 2 is regulated so as to be constant.

The guide collar 5 can be made of a polyolefin resin, a fluororesin, a polyacetal resin, or the like, but is self-lubricating, has no scum when worn out, does not flank the surface, and is an economical polyamide. Resins are preferred. The adjusting and moving means 4 has a screw type fine adjustment mechanism 11 fixed to the lock nut 10 mounted on at least the inlet side return roll 3. The guide collar 5 and the adjusting and moving means 4 are preferably attached to the entrance side and the exit side, and more preferably to all return rolls, to stably regulate the traveling position of the metal net belt during high-speed conveyance. Can be.

In order to prevent the meandering of the metal net belt, the inventor has adjusted the parallelism of the inlet and outlet pulleys (2 and 2 ') once adjusted and set, and then adjusted the position of the pulleys. But I found it necessary to keep it. In the present invention, both pulleys (2 and 2) are operated in the same operation.
In order to adjust the distance between the axes of the pulleys (2 and 2 ') while maintaining the parallel position of (1), the support positions of both ends of at least one pulley (2 or 2') are simultaneously moved in the belt direction by one operation. Then, means 6 for adjusting the distance between the shafts of the pulleys is provided. If precise adjustment is possible according to the device,
There is no particular limitation on the inter-axis distance adjusting means 6. For example, the wheel gears 12 are mounted by supporting both end portions of the outlet-side pulley rotating shaft so as to be slidable in the belt direction, and the worm gears 13 linked to the respective wheel gears 12 are mounted on the same rotating shaft 14. By rotating one end of the rotating shaft 14, both ends of both pulleys can be simultaneously moved by the same distance, and the distance between the axes of the pulleys (2 and 2 ') can be adjusted while maintaining the parallel position. . In addition, a pinion and a rack may be used.

The metal net belt 1 used in the present invention comprises:
In general, it is possible to manufacture various knitting forms by knitting a stainless wire having excellent corrosion resistance and durability. Since the belt is formed into an endless annular belt and circulated, it must be flexible and durable at least in the length direction. For example, a herringbone net in which a spiral wire is flexibly connected by a straight wire 4 is preferably used. The density of the metal net and the like can be appropriately selected depending on the size of the conveyed object and the like.

Further, in addition to the meandering preventing means, preferably, a guide rail 8 for holding the side of the metal net belt and preventing meandering is provided on both or one side 7 of the belt running belt. FIG. 3 shows an example of the embodiment. In this example, guide rails 8b are provided so as to sandwich the metal net belt 1 from both ends. Another embodiment is shown in FIG. In the example shown in FIG. 2, edge guides 9 projecting perpendicular to the belt surface are provided at both end portions (or one end portion) of the metal net belt 1. The edge guide 9 can be formed by, for example, pulling out the end of the wire constituting the metal net to the side of the belt and bending the wire, or attaching an L-shaped member to the side end of the metal net belt 1. . The edge guides 9 can be arranged at predetermined intervals or can be provided substantially continuously. Guide rails 8a for holding the edge guide 9 and guiding the metal net belt 1 in a predetermined direction without meandering are provided on both sides (or one side) of the belt running belt. The edge guide 9 is inserted into the groove of the guide rail 8a to run the metal net belt 1 to prevent meandering. Various synthetic resins can be used for the guide rails 8a and 8b as in the case of the guide collar 5, but a self-lubricating polyamide resin is preferably used.

[0014]

According to the present invention, it is possible to run a metal net type conveyor belt at high speed without worries about meandering and to cope with an improvement in productivity. For transporting plastic strands in a water-cooled tank drawn out from the bottom of the polymerization reactor or after water cooling, for draining and transporting pellets produced with a wet plastic pelletizer, for transporting water-washed or chemical spray agricultural products, and oil for metal heat treatment processes It can be widely used for transportation in a cold bath or after oil cooling.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a metal net belt conveyor of the present invention.

FIG. 2 is a schematic longitudinal sectional view in a direction perpendicular to the belt.

FIG. 3 is a view of another embodiment of a longitudinal section perpendicular to the belt.

[Explanation of symbols]

1: Metal net belt 2, 2 ': Pulley 3: Return roll 4: Return roll axial direction adjusting and moving means 5: Guide collar 6: Pulley axis distance adjusting means 7: Both sides of belt running belt 8a, 8b: Guide Rail 9: Edge guide 10: Lock nut 11: Adjustment screw 12: Wheel gear 13: Worm gear 14:
Rotating shaft 15: Belt support member 16: Casing

Claims (7)

[Claims] A guide collar (5) attached to a return roll (3) on the inlet side at a distance corresponding to the width of a metal net belt (1), and means for adjusting and moving the return roll in the axial direction. 4) A metal net belt conveyor, wherein A means (6) for adjusting the distance between the axes of the two pulleys (2 and 2 ') by simultaneously moving both ends of the pulley (2 or 2') in the direction of the belt is provided. Characterized by a metal net belt conveyor. 3. A guide collar (5) attached to a return roll (3) on the inlet side at a distance corresponding to the width of the metal net belt (1), and means for adjusting and moving the return roll in the axial direction. 4) and means (6) for adjusting the distance between the axes of the two pulleys (2 and 2 ') by simultaneously moving both ends of the pulley (2 or 2') in the belt direction. Characterized by a metal net belt conveyor. 4. A guide rail (8) for holding the end of a metal net belt on both sides (7 and 7 ') or one side (7 or 7') of the belt running belt to prevent meandering.
The metal net belt conveyor according to claim 1, 2 or 3, further comprising: 5. The metal net belt conveyor according to claim 1, wherein said guide collar and / or guide rail is made of polyamide resin. 6. A guide collar (5) is attached to the return roll (3) on the inlet side at a distance corresponding to the width of the metal net belt (1), and the return roll is moved and adjusted in the axial direction. A meandering prevention method for a metal net belt conveyor, wherein a belt running position on a return roll is regulated to prevent meandering of the belt. 7. A method for preventing meandering of a metal net belt conveyor, wherein both ends of a pulley are simultaneously moved in the belt direction by the same operation to adjust the distance between the axes of the pulleys (2 and 2 ').