RU2198759C1 - Wire gauze and conveying web of wire gauze - Google Patents

Abstract

FIELD: building, machine engineering, possibly building members and transportation webs. SUBSTANCE: gauze includes successively connected along its width longitudinal wire links. Said links have periodically arranged flat arch-shaped loops. Width of loop near base is less than outer side of loop at least by two diameters of wire. Spacing between loops are in the form of cross protrusions raised over flat loops and having height no less than two diameters of wire for embracing loops of one link by loops of next link near base of protrusions. Conveying web is made of wire gauze having longitudinal wire links successively joined one with another along its width. Said links have periodically arranged arch-shaped flat loops. Width of loop near its base is less than outer side of loop at least by two diameters of wire. Spacings between loops are in the form of cross protrusions raised over flat loops and having height no less than two diameters of wire for embracing loops of one link by means of loops of next link near protrusion base. Ends of longitudinal links are passed through terminal loops of next longitudinal link and they are bent to side of terminal loops of longitudinal links in plane of outer lateral sides of loops. Edges of gauze are connected by means of members having form of flat loops of longitudinal links of gauze. Ends of members are passed through loops of first longitudinal link of gauze and they are bent to side of connection members in planes of lateral sides of members. EFFECT: simplified process of making gauze and transportation web, their low cost price. 6 cl, 7 dwg

Description

 The invention relates to the field of construction and mechanical engineering and can be used as a building element for various purposes and as a conveyor belt for various goods, mainly long and flat.

 Known wire mesh type "netting" (see GOST 5336-80 "Single woven steel grids"), selected by the applicants as a prototype for the first object. Such a grid is made of separate interconnected longitudinal links made of wire, made in the form of a flat (flattened) spiral, forming a rhombic or square cell. In this case, the adjacent links are screwed (woven) into each other, i.e. each longitudinal link is connected to two adjacent longitudinal links. Each end of the longitudinal link at the junction is bent to the spiral of its link. The vertices of the turns of flat spirals with the mesh in tension are in the same plane.

 Nets are made entirely from one wire. A wire is a technological material. Wire mesh type "netting" are made on the simplest semiautomatic devices and have almost no waste.

 The disadvantages of the prototype are associated with the spiral form of the links, which are freely self-screwing during transportation, installation and operation of the grid. In a roll in a folded state, the mesh links cling to each other. When loosening the tape during its installation, the links are on top of each other. Hence the difficulty arises in its promotion and installation. All of the above leads to the destruction of the grid and a decrease in its reliability.

 The objective of the invention for the first object is to improve performance and increase the reliability of the wire mesh.

 Known conveyor web of wire mesh according to US patent 3920117 from 11/18/1975, selected by the applicants as a prototype for the second object of the invention, made of two types of longitudinal links made of wire that are successively interconnected over its width. The first type of longitudinal links is made in a zigzag shape. The second type of links is made in the form of a flattened spiral connecting two longitudinal links of the first type. The ends of the links in pairs (first and second type) are welded, which fixes their position.

 The need to perform longitudinal links of two types and the implementation of welding operations in large quantities leads to the high complexity of manufacturing a transport web. In addition, it is difficult to weld the ends of the longitudinal links made of thin wire.

 The technical task of the invention for the second object is to reduce the complexity of manufacturing a conveyor belt, and therefore, reduce the cost of its manufacture and expand the scope.

 According to the first object of the invention, the problem is solved in such a way that in the known wire mesh made of longitudinally connected longitudinal links of wire according to the invention, the links are made with periodically arranged flat arched-shaped loops, while the loop width at the base is less than the outer side of the loop less than two wire diameters, and the gaps between the loops are made in the form of transverse protrusions above the flat loops with a height of at least two wire diameters to girth the loops l one link loops next link at the base of the protrusions.

 In this case, the outer side of the loops of the longitudinal links can be made convex or concave.

 According to the second object of the invention, the problem is solved in such a way that in the known conveyor web of wire mesh made of longitudinally connected longitudinal links of wire, according to the invention, the links are made with periodically arranged flat arched-shaped loops, while the width of the loop at the base is less than the outer the sides of the loop are not less than two diameters of the wire, and the gaps between the loops are made in the form of transverse protrusions above the flat loops with a height of at least two diameters ropes for grasping the loops of one link with loops of the next link at the base of the protrusions, while the ends of each longitudinal link are drawn through the extreme loops of the subsequent longitudinal link, bent towards the extreme loops of their longitudinal link in the plane of the outer sides of the loops, and the ends of the mesh are connected by elements made along the shape of the flat loops of the longitudinal links of the grid, while the ends of the elements are drawn through the loops of the first longitudinal link of the grid and bent towards the connecting elements in the planes of the side x sides of the elements.

 In this case, the outer side of the loops of the longitudinal links is convex or concave.

 Both objects are united by a single inventive concept.

 A mesh was created with the shape of the links having flat loops and the shape of the connection of adjacent links of the loop-in-loop type. The narrowness of the loops in their base excludes dropping of loops. The presence of transverse protrusions on the longitudinal links limits the movement of the link along its axis. Not a single link of this form will come out of the net during its transportation, installation, during operation, and during any loosening of the net. The base of the flat hinges when the mesh is unfolded lie in the same plane. The transverse protrusions create an articulation of two adjacent links with the required angular stroke, which allows the grid to be freely twisted into a roll in any direction without meshing and seizing.

 The implementation of various types of loops of longitudinal links with a convex or concave outer side allows you to create various modifications of the mesh with a variety of characteristics of its rigidity and the expansion of the field of use.

 A net of a new type of weaving with high resistance to self-weaving and self-locking is obtained, which allows to improve its operational characteristics as a marketable building product, convenient for installation work.

 The wire mesh can be made closed in working condition into an endless ribbon by means of many locking elements. High resistance against self-weaving during installation, loosening and simple locks in the form of loops of the longitudinal links of the mesh allow you to quickly set the conveyor belt mesh in the working position.

 The ends of the web are connected to an endless ribbon using the same link elements on the same equipment. The bent ends of the connecting elements do not extend beyond the height of the protrusions and do not injure the transported products. The ends of the connecting elements in the form of hooks and the hem of the hooks to the working position form a closed eye for loops of the first mesh link of the conveyor belt.

 Depending on the type and shape of the transported products, the transverse protrusions can serve as the supporting part of the web, for example for transported flat and long products, or they are separators between the links, creating nests for transported long products.

 The bent ends of the longitudinal links of the grid create an additional barrier and are limiters on the sides of the conveyor.

 Various forms of loops (convex or concave outer side of the loops) lead to the contact of the loops at different contact angles, which allows to obtain a different longitudinal stiffness of the mesh. Some conveyors require conveyor belts to move along a curved path in the horizontal plane. A mesh with a “soft” characteristic of longitudinal stiffness (the outer sides of the loops are convex) allows rotation, while the load is distributed over almost the entire width of the web.

 The complexity of manufacturing a conveyor belt is significantly reduced, because all the mesh links have the same shape, no welding of the ends of the longitudinal links is required, and wire of any diameter can be used to make such a canvas, which will expand the scope of the conveyor belt of the proposed design.

 Conducted patent research did not reveal similar technical solutions, which allows us to conclude about the novelty and inventive step of the proposed objects.

 The domestic industry has all the means (materials, equipment, technologies) necessary for the manufacture of the proposed facilities. The proposed technical solution can be widely applied in industry. The wire mesh is an object of general construction purpose and can be applicable, for example, for fencing, fastening mines in mines and mines, sifting materials, etc.

 A conveyor web made of wire mesh can be used in various branches of technology, where according to the strength conditions it is possible to use a wire mesh without reinforcing (hardening) its chains. For example, in the technological processes of the food industry (baking cookies, etc.), pharmaceutical, fish processing, glass, i.e. where small holes are required in the conveyor belt itself, or it is necessary to ensure heat resistance of the belt in the furnace.

The essence of the proposed technical solution is illustrated by drawings, where:
figure 1 (photo) shows a General view of a wire mesh in isometry;
figure 2 - the implementation of the loop with a convex outer side;
figure 3 - implementation of the loop with a concave outer side;
figure 4 - (photo) - wire mesh, curved in two directions;
in FIG. 5 - a fragment of the conveyor belt at the junction of the elements in a closed grid;
figure 6 - conveyor belt according to aa in figure 5;
7 is a photograph of an industrial design of wire mesh.

The wire mesh is made of sequentially interconnected along its width longitudinal links 1 of wire with a diameter of 0.5 mm to 5 mm. The wire may be galvanized, light, black and thermally untreated or annealed. It may be in a plastic shell. The links are made with periodically arranged flat loops of arched form 2, while the outer side 3 of the loops 2 can be convex 4 or concave 5. The width of the loop 2 at the base 6 is less than the outer side 3 of the loop 2 by at least two wire diameters to connect the loops 2 adjacent longitudinal links 1 of the type "loop in the loop." The gaps between the loops 2 are made in the form of transverse protrusions 7 above the flat loops 2. The height of the transverse protrusions 7 must be at least two wire diameters, so that it is possible to grip the loops 2 of one link with the loops of the next link at the base of the protrusions 8. At the junction of the loops 2 swivel that allows you to roll the net in a roll in any direction. The connection of two adjacent links allows you to take the value of the angle from -160 ^o to +50 ^o . The base of the flat hinges 2 with a stretched or simply deployed state of the mesh are in the same plane. The ends 9 of the longitudinal links 1 are located along the longitudinal axis of the link 1. In this design, they increase the width of the grid. If necessary, the ends can be bent, as described below, in the conveyor belt or in another way.

 The width of the mesh can be up to 2.5 m. The length of the mesh in a roll is 10 m. By agreement with the customer, the mesh size may be different.

 The objects of inventions are united by a single inventive concept. The conveyor belt consists of a wire mesh made as described above. The ends 9 of each longitudinal link 1 in the proposed conveyor belt are drawn through the extreme loops 10 of the subsequent longitudinal link 1, bent towards the extreme loops 11 of their (previous) link in the plane of the outer sides 12 of the extreme loops 11. The ends of the mesh are connected by elements 13 made in shape flat loops 2 longitudinal links 1 mesh. The ends 14, 15 of the elements 13 are drawn through the loops of the first longitudinal link 1 of the mesh and are bent to the side of the connecting elements 13 in the planes of the sides of the elements 16, 17. The mesh for the conveyor belt should be made of stainless wire.

The applied tensile load on the conveyor belt with a convex shape 4 of the outer side 3 of the loops 2 stretches the mesh and at the same time reduces its width by several percent. A prototype of the inventive mesh in the form of a square with a side of 1 m, with a mesh size of 10 mm, a wire diameter of 1 mm has a longitudinal stiffness coefficient of 3.4 • 10 ⁴ n / m In practice, this means an elongation of 44 mm under tensile strength of 1500 N. Some conveyors require conveyor belts to move along a curved path in the horizontal plane. A mesh with convex 4 external sides of 3 loops 2 (with a “soft” longitudinal stiffness characteristic) allows such a rotation, while the outer loops 2 are stretched, the inner loops 2 are slightly folded. But the thrust in the latter (in the inner loops) is maintained, because the load is practically distributed over the entire width of the web.

 The concave shape 5 of the outer side 3 of the loops 2 increases the rigidity of the mesh and is applicable to a relatively thin wire.

 The working movement of the conveyor belt is directed towards the mesh loops 2. The bases 6 of the loops 2 (or the bases of the protrusions 7) form the base of the conveyor belt, which easily overcomes random mini-protrusions on the conveyor. The conveyor belt can bend around the conveyor rollers. The transported product 18 is located on the tops of the transverse protrusions 7 (as in FIG. 6) or in the nests (cells) between the protrusions 7.

 A roll of finished mesh is tied with wire in the middle and along the edges. Transportation and storage of nets should be carried out in accordance with GOST 15150-69.

 The authors made prototypes of the proposed facilities and tested them.

Claims (6)

 1. A wire mesh made of longitudinal wire links sequentially interconnected along its width, characterized in that the links are made with periodically arranged flat arched-shaped loops, while the width of the loop at the base is less than the outer side of the loop by at least two wire diameters, and the gaps between the loops are made in the form of transverse protrusions above the flat loops with a height of at least two wire diameters for looping the loops of one link with loops of the next link at the base of the protrusions.  2. The wire mesh according to claim 1, characterized in that the outer side of the loops of the longitudinal links is convex.  3. The wire mesh according to claim 1, characterized in that the outer side of the loops of the longitudinal links is made concave.  4. Conveyor web made of wire mesh made of longitudinal links of wire sequentially interconnected along its width, characterized in that the links are made with periodically arranged flat arched-shaped loops, while the loop width at the base is less than two diameters less than the outer side of the loop wire, and the gaps between the loops are made in the form of transverse protrusions above the flat loops with a height of at least two wire diameters to surround the loops of one link with loops of the next link at the bases protrusions, while the ends of the longitudinal links are drawn through the extreme loops of the subsequent longitudinal link, bent towards the extreme loops of the longitudinal links in the plane of the outer side sides of the loops, and the ends of the mesh are connected by elements made in the form of flat loops of the longitudinal links of the mesh, while the ends of the elements are turned through the loops of the first longitudinal link of the mesh and bent towards the connecting elements in the planes of the sides of the elements.  5. The conveyor belt according to claim 4, characterized in that the outer side of the loops of the longitudinal links is convex.  6. The conveyor belt according to claim 4, characterized in that the outer side of the loops of the longitudinal links is made concave.

Images